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Mathematics

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C Dzirutwe

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Mathematics

Inverse of functions

C Dzirutwe

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1. Fill-in-the-Blank

30 seconds

1 pt

A function is an equation that shows the ................. between 2 or more letters.
2. Fill-in-the-Blank

30 seconds

1 pt

In Algebra, letters are used to represent numbers. These letters can also be called.............
3. Fill-in-the-Blank

30 seconds

1 pt

When given an equation, the letter that stands on its own is called the ............... of the formula.
4. Fill-in-the-Blank

30 seconds

1 pt

An inverse function is a function that does the .............. of the original function.
5. Multiple-choice

1 minute

1 pt

Find the inverse of the function $f\left(x\right)=x+7$

$f^{-1}\left(x\right)=x-7$

$f^{-1}\left(x\right)=x+7$

$f^{-1}\left(x\right)=7x$

$f^{-1}\left(x\right)=\frac{7}{x}$
6. Multiple-choice

1 minute

1 pt

Find the inverse of the function $f\left(x\right)=\frac{x}{4}$

$x-4$

$x+4$

$4x$

$4$
7. Multiple-choice

1 minute

1 pt

What is the inverse of the function below? $f\left(x\right)=3x-2$

$3x-2$

$2x-3$

$\frac{x+2}{3}$

$\frac{x+3}{2}$
8. Multiple-choice

1 minute

1 pt

What is the inverse of the function $\frac{x+3}{3}$

$9x$

$3x-3$

$x+1$

$3x+3$
9. Multiple-choice

1 minute

1 pt

Find the inverse

$f\left(x\right)=3x+5$

$5x-3$

$\frac{x-5}{3}$

$\frac{x-3}{5}$

$3x-5$
10. Multiple-choice

2 minutes

1 pt

Find the inverse of $f\left(x\right)=\frac{2x+3}{4}$

$\frac{4x-3}{2}$

$\frac{4}{2x+3}$

$\frac{2x-3}{-4}$

$\frac{4x+3}{2}$
11. Multiple-choice

2 minutes

1 pt

Find the inverse $f\left(x\right)=\frac{4x-6}{3}$

$\frac{3x-6}{4}$

$\frac{3x+6}{4}$

$\frac{4x+6}{-3}$

$\frac{6x-4}{3}$
12. Multiple-choice

2 minutes

1 pt

Find the inverse for $f\left(x\right)=\frac{1}{2}x-2$

$2-\frac{1}{2}x$

$2x-2$

$\frac{1}{2}x+2$

$2x+2$
13. Multiple-choice

2 minutes

1 pt

Find the inverse $f\left(x\right)=\frac{1}{4}x+5$

$-5-\frac{1}{4}x$

$4x+5$

$4x-20$

$5-4x$
14. Multiple-choice

1 minute

1 pt

What is the inverse for the function $f\left(x\right)=\sqrt{x}$ ?

$\frac{x}{2}$

$x^2$

$2x$

$-x$
15. Multiple-choice

2 minutes

1 pt

Find the inverse for $f\left(x\right)=x^2-1$

$-x+1$

$2x+1$

$\sqrt{x}+1$

$\sqrt{x+1}$
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Inverse of functions

Mathematics

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Inverse of functions

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