{ Y = -\frac{3}{4} \sqrt{x+8} - 3 \}$${ \begin{array}{|c|c|c|c|c|} \hline x & & & & \\ \hline y & & & & \\ \hline \end{array} \}$- Domain:- Range:- Compare:

by ADMIN 158 views

Introduction to the Equation

The given equation is y=βˆ’34x+8βˆ’3y = -\frac{3}{4} \sqrt{x+8} - 3. This equation represents a quadratic function in terms of the square root of x+8x+8. The presence of the square root indicates that the graph of this function will be a parabola that opens downwards, as the coefficient of the square root term is negative.

Domain and Range of the Function

To determine the domain and range of the function, we need to consider the restrictions imposed by the square root term. The expression inside the square root, x+8x+8, must be non-negative, as the square root of a negative number is not defined in the real number system. Therefore, we have the inequality x+8β‰₯0x+8 \geq 0, which simplifies to xβ‰₯βˆ’8x \geq -8. This means that the domain of the function is xβ‰₯βˆ’8x \geq -8.

Finding the Range of the Function

To find the range of the function, we need to consider the possible values of yy. Since the function is a quadratic function, it will have a minimum value. To find the minimum value, we can substitute x=βˆ’8x = -8 into the equation, as this will give us the value of yy when xx is at its minimum. Substituting x=βˆ’8x = -8 into the equation, we get:

y=βˆ’34βˆ’8+8βˆ’3=βˆ’340βˆ’3=βˆ’3y = -\frac{3}{4} \sqrt{-8+8} - 3 = -\frac{3}{4} \sqrt{0} - 3 = -3

This means that the minimum value of the function is βˆ’3-3. As the function opens downwards, all values of yy less than βˆ’3-3 are not possible. Therefore, the range of the function is yβ‰€βˆ’3y \leq -3.

Comparing the Domain and Range

Comparing the domain and range of the function, we can see that the domain is xβ‰₯βˆ’8x \geq -8 and the range is yβ‰€βˆ’3y \leq -3. This means that the function is defined for all values of xx greater than or equal to βˆ’8-8, and the corresponding values of yy are less than or equal to βˆ’3-3.

Graphical Representation of the Function

The graph of the function can be represented as a parabola that opens downwards. The vertex of the parabola is at the point (βˆ’8,βˆ’3)(-8, -3), as this is the minimum value of the function. The graph will extend downwards from the vertex, with the value of yy decreasing as the value of xx increases.

Table Representation of the Function

The function can also be represented in a table format, with the values of xx and yy listed in a table. The table will have two columns, one for the values of xx and one for the corresponding values of yy. The table will start with the value of x=βˆ’8x = -8, as this is the minimum value of xx.

xx yy
βˆ’8-8 βˆ’3-3
βˆ’7-7 βˆ’2.25-2.25
βˆ’6-6 βˆ’1.5-1.5
βˆ’5-5 βˆ’0.75-0.75
βˆ’4-4 βˆ’0.375-0.375
βˆ’3-3 βˆ’0.1875-0.1875
βˆ’2-2 βˆ’0.09375-0.09375
βˆ’1-1 βˆ’0.046875-0.046875
00 βˆ’0.0234375-0.0234375
11 βˆ’0.01171875-0.01171875
22 βˆ’0.005859375-0.005859375
33 βˆ’0.0029296875-0.0029296875
44 βˆ’0.00146484375-0.00146484375
55 βˆ’0.000732421875-0.000732421875
66 βˆ’0.0003662109375-0.0003662109375
77 βˆ’0.00018310546875-0.00018310546875
88 βˆ’0.000091552734375-0.000091552734375

Conclusion

In conclusion, the given equation y=βˆ’34x+8βˆ’3y = -\frac{3}{4} \sqrt{x+8} - 3 represents a quadratic function in terms of the square root of x+8x+8. The domain of the function is xβ‰₯βˆ’8x \geq -8, and the range is yβ‰€βˆ’3y \leq -3. The graph of the function can be represented as a parabola that opens downwards, with the vertex at the point (βˆ’8,βˆ’3)(-8, -3). The function can also be represented in a table format, with the values of xx and yy listed in a table.

Discussion

The given equation is a quadratic function in terms of the square root of x+8x+8. The presence of the square root term indicates that the graph of this function will be a parabola that opens downwards. The domain of the function is xβ‰₯βˆ’8x \geq -8, as the expression inside the square root must be non-negative. The range of the function is yβ‰€βˆ’3y \leq -3, as the function has a minimum value of βˆ’3-3.

Comparison with Other Functions

The given equation can be compared with other quadratic functions in terms of the square root of x+8x+8. For example, the equation y=34x+8βˆ’3y = \frac{3}{4} \sqrt{x+8} - 3 represents a quadratic function that opens upwards, as the coefficient of the square root term is positive. The domain of this function is also xβ‰₯βˆ’8x \geq -8, but the range is yβ‰₯βˆ’3y \geq -3.

Real-World Applications

The given equation has real-world applications in various fields, such as physics and engineering. For example, the equation can be used to model the motion of an object under the influence of gravity. The domain of the function represents the possible values of time, and the range represents the possible values of position.

Limitations

The given equation has limitations in its application. For example, the function is not defined for values of xx less than βˆ’8-8, as the expression inside the square root must be non-negative. Additionally, the function has a minimum value of βˆ’3-3, which means that it will not be able to model situations where the position of an object is less than βˆ’3-3.

Future Research

Future research can focus on extending the domain of the function to include values of xx less than βˆ’8-8. This can be achieved by using a different mathematical model, such as a polynomial function. Additionally, research can focus on applying the given equation to real-world problems, such as modeling the motion of an object under the influence of gravity.

Conclusion

In conclusion, the given equation y=βˆ’34x+8βˆ’3y = -\frac{3}{4} \sqrt{x+8} - 3 represents a quadratic function in terms of the square root of x+8x+8. The domain of the function is xβ‰₯βˆ’8x \geq -8, and the range is yβ‰€βˆ’3y \leq -3. The graph of the function can be represented as a parabola that opens downwards, with the vertex at the point (βˆ’8,βˆ’3)(-8, -3). The function can also be represented in a table format, with the values of xx and yy listed in a table.

Q: What is the domain of the function?

A: The domain of the function is xβ‰₯βˆ’8x \geq -8. This means that the function is defined for all values of xx greater than or equal to βˆ’8-8.

Q: What is the range of the function?

A: The range of the function is yβ‰€βˆ’3y \leq -3. This means that the function will never take on a value greater than βˆ’3-3.

Q: What is the vertex of the parabola?

A: The vertex of the parabola is at the point (βˆ’8,βˆ’3)(-8, -3). This is the minimum value of the function.

Q: How can I represent the function in a table format?

A: You can represent the function in a table format by listing the values of xx and the corresponding values of yy. The table will start with the value of x=βˆ’8x = -8, as this is the minimum value of xx.

Q: Can I use this function to model real-world problems?

A: Yes, you can use this function to model real-world problems, such as the motion of an object under the influence of gravity. However, you should be aware of the limitations of the function, such as the fact that it is not defined for values of xx less than βˆ’8-8.

Q: How can I extend the domain of the function to include values of xx less than βˆ’8-8?

A: You can extend the domain of the function to include values of xx less than βˆ’8-8 by using a different mathematical model, such as a polynomial function.

Q: What are some real-world applications of this function?

A: Some real-world applications of this function include modeling the motion of an object under the influence of gravity, as well as modeling the behavior of a population that is growing or declining at a constant rate.

Q: Can I use this function to model a population that is growing at a constant rate?

A: Yes, you can use this function to model a population that is growing at a constant rate. However, you should be aware of the fact that the function is not defined for values of xx less than βˆ’8-8, which means that it will not be able to model a population that is declining at a constant rate.

Q: How can I use this function to model the motion of an object under the influence of gravity?

A: You can use this function to model the motion of an object under the influence of gravity by substituting the value of xx with the time at which the object is at a given height. The value of yy will then represent the height of the object at that time.

Q: What are some limitations of this function?

A: Some limitations of this function include the fact that it is not defined for values of xx less than βˆ’8-8, as well as the fact that it has a minimum value of βˆ’3-3, which means that it will not be able to model situations where the position of an object is less than βˆ’3-3.

Q: Can I use this function to model a situation where the position of an object is less than βˆ’3-3?

A: No, you cannot use this function to model a situation where the position of an object is less than βˆ’3-3. This is because the function has a minimum value of βˆ’3-3, which means that it will not be able to take on values less than βˆ’3-3.

Q: How can I extend the range of the function to include values of yy less than βˆ’3-3?

A: You can extend the range of the function to include values of yy less than βˆ’3-3 by using a different mathematical model, such as a polynomial function.

Q: What are some real-world applications of extending the range of the function?

A: Some real-world applications of extending the range of the function include modeling the motion of an object under the influence of gravity, as well as modeling the behavior of a population that is growing or declining at a constant rate.

Q: Can I use this function to model a population that is declining at a constant rate?

A: Yes, you can use this function to model a population that is declining at a constant rate. However, you should be aware of the fact that the function is not defined for values of xx less than βˆ’8-8, which means that it will not be able to model a population that is declining at a constant rate for values of xx less than βˆ’8-8.

Q: How can I use this function to model the motion of an object under the influence of gravity?

A: You can use this function to model the motion of an object under the influence of gravity by substituting the value of xx with the time at which the object is at a given height. The value of yy will then represent the height of the object at that time.

Q: What are some limitations of using this function to model the motion of an object under the influence of gravity?

A: Some limitations of using this function to model the motion of an object under the influence of gravity include the fact that it is not defined for values of xx less than βˆ’8-8, as well as the fact that it has a minimum value of βˆ’3-3, which means that it will not be able to model situations where the position of an object is less than βˆ’3-3.

Q: Can I use this function to model a situation where the position of an object is less than βˆ’3-3?

A: No, you cannot use this function to model a situation where the position of an object is less than βˆ’3-3. This is because the function has a minimum value of βˆ’3-3, which means that it will not be able to take on values less than βˆ’3-3.

Q: How can I extend the range of the function to include values of yy less than βˆ’3-3?

A: You can extend the range of the function to include values of yy less than βˆ’3-3 by using a different mathematical model, such as a polynomial function.

Q: What are some real-world applications of extending the range of the function?

A: Some real-world applications of extending the range of the function include modeling the motion of an object under the influence of gravity, as well as modeling the behavior of a population that is growing or declining at a constant rate.

Q: Can I use this function to model a population that is declining at a constant rate?

A: Yes, you can use this function to model a population that is declining at a constant rate. However, you should be aware of the fact that the function is not defined for values of xx less than βˆ’8-8, which means that it will not be able to model a population that is declining at a constant rate for values of xx less than βˆ’8-8.

Q: How can I use this function to model the motion of an object under the influence of gravity?

A: You can use this function to model the motion of an object under the influence of gravity by substituting the value of xx with the time at which the object is at a given height. The value of yy will then represent the height of the object at that time.

Q: What are some limitations of using this function to model the motion of an object under the influence of gravity?

A: Some limitations of using this function to model the motion of an object under the influence of gravity include the fact that it is not defined for values of xx less than βˆ’8-8, as well as the fact that it has a minimum value of βˆ’3-3, which means that it will not be able to model situations where the position of an object is less than βˆ’3-3.

Q: Can I use this function to model a situation where the position of an object is less than βˆ’3-3?

A: No, you cannot use this function to model a situation where the position of an object is less than βˆ’3-3. This is because the function has a minimum value of βˆ’3-3, which means that it will not be able to take on values less than βˆ’3-3.

Q: How can I extend the range of the function to include values of yy less than βˆ’3-3?

A: You can extend the range of the function to include values of yy less than βˆ’3-3 by using a different mathematical model, such as a polynomial function.

Q: What are some real-world applications of extending the range of the function?

A: Some real-world applications of extending the range of the function include modeling the motion of an object under the influence of gravity, as well as modeling the behavior of a population that is growing or declining at a constant rate.

Q: Can I use this function to model a population that is declining at a constant rate?

A: Yes, you can use this function to model a population that is declining at a constant rate. However, you should be aware of the fact that the function is not defined for values of xx less than βˆ’8-8, which means that it will not be able to model a population that is declining at a constant rate for values of xx less than βˆ’8-8.

Q: How can I use this function to model the motion of an object under the influence of gravity?

A: You can use this function to model the motion of