Exam Review Find the inverse of a function algebraically

Exam Review Find the inverse of a function algebraically

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to find the inverse of a function both graphically and algebraically. It begins with replacing f(x) with y and discusses the graphical relationship between a function and its inverse, highlighting the reflection about the line y = x. The tutorial then covers algebraic manipulation by swapping variables and solving for y using inverse operations, emphasizing the correct order of operations. Finally, it discusses inverse notation and naming conventions, such as using g(x) instead of f inverse.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in understanding the relationship between a function and its inverse graphically?

Swap the x and y coordinates

Replace y with f(x)

Multiply the function by -1

Reflect the graph over the x-axis

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When solving for y in an inverse function, what is a common mistake students make?

Multiplying instead of dividing

Ignoring the order of operations

Not swapping the variables

Adding instead of subtracting

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you do first when solving for y in the inverse function?

Divide by 7

Subtract 8

Add 8

Multiply by 7

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the context of inverse functions, what does the notation g(x) represent?

A derivative of the function

A constant function

The inverse function

The original function

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a possible notation for an inverse function?

f inverse

g of x

h of x

f squared