Let $f(x) = 14x + 6$. Find $f^{-1}(x$\].$f^{-1}(x) =$

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Introduction

In mathematics, the concept of inverse functions is crucial in solving equations and understanding the behavior of functions. Given a function f(x)f(x), the inverse function fβˆ’1(x)f^{-1}(x) is a function that undoes the action of f(x)f(x). In other words, if f(x)f(x) maps an input xx to an output yy, then fβˆ’1(x)f^{-1}(x) maps the output yy back to the input xx. In this article, we will find the inverse function of the given function f(x)=14x+6f(x) = 14x + 6.

Understanding the Concept of Inverse Functions

To find the inverse function of f(x)f(x), we need to understand the concept of inverse functions. The inverse function fβˆ’1(x)f^{-1}(x) is a function that satisfies the following property:

f(fβˆ’1(x))=xf(f^{-1}(x)) = x

This means that if we apply the function f(x)f(x) to the output of fβˆ’1(x)f^{-1}(x), we get back the original input xx. In other words, the inverse function fβˆ’1(x)f^{-1}(x) undoes the action of f(x)f(x).

Finding the Inverse Function

To find the inverse function of f(x)=14x+6f(x) = 14x + 6, we need to swap the variables xx and yy and then solve for yy. This is because the inverse function fβˆ’1(x)f^{-1}(x) maps the output yy back to the input xx.

Let y=f(x)=14x+6y = f(x) = 14x + 6. Swapping the variables xx and yy, we get:

x=14y+6x = 14y + 6

Now, we need to solve for yy. Subtracting 6 from both sides, we get:

xβˆ’6=14yx - 6 = 14y

Dividing both sides by 14, we get:

y=xβˆ’614y = \frac{x - 6}{14}

Therefore, the inverse function of f(x)=14x+6f(x) = 14x + 6 is:

fβˆ’1(x)=xβˆ’614f^{-1}(x) = \frac{x - 6}{14}

Verifying the Inverse Function

To verify that the inverse function fβˆ’1(x)=xβˆ’614f^{-1}(x) = \frac{x - 6}{14} is indeed the inverse of f(x)=14x+6f(x) = 14x + 6, we need to check if the following property holds:

f(fβˆ’1(x))=xf(f^{-1}(x)) = x

Substituting fβˆ’1(x)=xβˆ’614f^{-1}(x) = \frac{x - 6}{14} into the equation, we get:

f(fβˆ’1(x))=f(xβˆ’614)f(f^{-1}(x)) = f\left(\frac{x - 6}{14}\right)

Using the definition of f(x)=14x+6f(x) = 14x + 6, we get:

f(fβˆ’1(x))=14(xβˆ’614)+6f(f^{-1}(x)) = 14\left(\frac{x - 6}{14}\right) + 6

Simplifying the equation, we get:

f(fβˆ’1(x))=xβˆ’6+6f(f^{-1}(x)) = x - 6 + 6

f(fβˆ’1(x))=xf(f^{-1}(x)) = x

Therefore, the inverse function fβˆ’1(x)=xβˆ’614f^{-1}(x) = \frac{x - 6}{14} is indeed the inverse of f(x)=14x+6f(x) = 14x + 6.

Conclusion

In this article, we found the inverse function of the given function f(x)=14x+6f(x) = 14x + 6. We used the concept of inverse functions and the property f(fβˆ’1(x))=xf(f^{-1}(x)) = x to verify that the inverse function fβˆ’1(x)=xβˆ’614f^{-1}(x) = \frac{x - 6}{14} is indeed the inverse of f(x)=14x+6f(x) = 14x + 6. The inverse function fβˆ’1(x)=xβˆ’614f^{-1}(x) = \frac{x - 6}{14} is a crucial tool in solving equations and understanding the behavior of functions.

Applications of Inverse Functions

Inverse functions have numerous applications in mathematics and other fields. Some of the applications of inverse functions include:

  • Solving equations: Inverse functions can be used to solve equations by undoing the action of the function.
  • Graphing functions: Inverse functions can be used to graph functions by reflecting the graph of the function across the line y=xy = x.
  • Optimization: Inverse functions can be used to optimize functions by finding the maximum or minimum value of the function.
  • Calculus: Inverse functions are used extensively in calculus to find the derivative and integral of functions.

Final Thoughts

Inverse functions are a fundamental concept in mathematics that has numerous applications in various fields. In this article, we found the inverse function of the given function f(x)=14x+6f(x) = 14x + 6 and verified that it is indeed the inverse of f(x)=14x+6f(x) = 14x + 6. The inverse function fβˆ’1(x)=xβˆ’614f^{-1}(x) = \frac{x - 6}{14} is a crucial tool in solving equations and understanding the behavior of functions.

Introduction

Inverse functions are a fundamental concept in mathematics that has numerous applications in various fields. In our previous article, we found the inverse function of the given function f(x)=14x+6f(x) = 14x + 6 and verified that it is indeed the inverse of f(x)=14x+6f(x) = 14x + 6. In this article, we will answer some frequently asked questions about inverse functions.

Q1: What is an inverse function?

A1: An inverse function is a function that undoes the action of the original function. In other words, if f(x)f(x) maps an input xx to an output yy, then fβˆ’1(x)f^{-1}(x) maps the output yy back to the input xx.

Q2: How do I find the inverse function of a given function?

A2: To find the inverse function of a given function, you need to swap the variables xx and yy and then solve for yy. This is because the inverse function fβˆ’1(x)f^{-1}(x) maps the output yy back to the input xx.

Q3: What is the property of an inverse function?

A3: The property of an inverse function is that f(fβˆ’1(x))=xf(f^{-1}(x)) = x. This means that if we apply the function f(x)f(x) to the output of fβˆ’1(x)f^{-1}(x), we get back the original input xx.

Q4: Can an inverse function be a function?

A4: Yes, an inverse function can be a function. In fact, the inverse function fβˆ’1(x)f^{-1}(x) is a function that satisfies the property f(fβˆ’1(x))=xf(f^{-1}(x)) = x.

Q5: Can an inverse function be a relation?

A5: Yes, an inverse function can be a relation. In fact, the inverse function fβˆ’1(x)f^{-1}(x) is a relation that satisfies the property f(fβˆ’1(x))=xf(f^{-1}(x)) = x.

Q6: How do I verify that an inverse function is indeed the inverse of the original function?

A6: To verify that an inverse function is indeed the inverse of the original function, you need to check if the property f(fβˆ’1(x))=xf(f^{-1}(x)) = x holds.

Q7: Can an inverse function be a one-to-one function?

A7: Yes, an inverse function can be a one-to-one function. In fact, the inverse function fβˆ’1(x)f^{-1}(x) is a one-to-one function that satisfies the property f(fβˆ’1(x))=xf(f^{-1}(x)) = x.

Q8: Can an inverse function be a many-to-one function?

A8: No, an inverse function cannot be a many-to-one function. In fact, the inverse function fβˆ’1(x)f^{-1}(x) is a one-to-one function that satisfies the property f(fβˆ’1(x))=xf(f^{-1}(x)) = x.

Q9: Can an inverse function be a function with a domain and range?

A9: Yes, an inverse function can be a function with a domain and range. In fact, the inverse function fβˆ’1(x)f^{-1}(x) is a function with a domain and range that satisfies the property f(fβˆ’1(x))=xf(f^{-1}(x)) = x.

Q10: Can an inverse function be a function with a restricted domain and range?

A10: Yes, an inverse function can be a function with a restricted domain and range. In fact, the inverse function fβˆ’1(x)f^{-1}(x) is a function with a restricted domain and range that satisfies the property f(fβˆ’1(x))=xf(f^{-1}(x)) = x.

Conclusion

Inverse functions are a fundamental concept in mathematics that has numerous applications in various fields. In this article, we answered some frequently asked questions about inverse functions. We hope that this article has provided you with a better understanding of inverse functions and how to find and verify them.

Final Thoughts

Inverse functions are a crucial tool in mathematics that has numerous applications in various fields. In this article, we found the inverse function of the given function f(x)=14x+6f(x) = 14x + 6 and verified that it is indeed the inverse of f(x)=14x+6f(x) = 14x + 6. We also answered some frequently asked questions about inverse functions. We hope that this article has provided you with a better understanding of inverse functions and how to find and verify them.