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Inverse Functions Practice

Authored by ERICA VARGAS

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9th - 11th Grade

Used 44+ times

Inverse Functions Practice
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10 questions

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1.

FILL IN THE BLANKS QUESTION

5 mins • 1 pt

What is the inverse of  y =14x+3y\ =\frac{1}{4}x+3  

(a)  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the inverse of  f(x)=x2−5f\left(x\right)=x^2-5  ?

 f−1(x)=±x+5f^{-1}\left(x\right)=\pm\sqrt{x+5}  

 f−1(x)=±x+5f^{-1}\left(x\right)=\pm\sqrt{x}+5  

 f−1(x)=±x−5f^{-1}\left(x\right)=\pm\sqrt{x}-5  

 f−1(x)=±x−5f^{-1}\left(x\right)=\pm\sqrt{x-5}  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the inverse of  f(x)=x−2f\left(x\right)=\sqrt{x}-2  ?

 f−1(x)=x2+2f^{-1}\left(x\right)=x^2+2  

 f−1(x)=(x+2)2f^{-1}\left(x\right)=\left(x+2\right)^2  

4.

FILL IN THE BLANKS QUESTION

3 mins • 1 pt

What is the inverse of the ordered pair (-2,5)?

(a)  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the domain of  f(x)=x−7f\left(x\right)=\sqrt{x-7}  ?

 x≥7x\ge7  

 x≤7x\le7  

 x>7x>7  

 x<7x<7  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the range of  f(x)=x−7f\left(x\right)=\sqrt{x-7}  ?

 y>0y>0  

 y≥0y\ge0  

 y≤0y\le0  

 y<0y<0  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the inverse of  f(x)=x−7f\left(x\right)=\sqrt{x-7}  ?

 f−1(x)=(x+7)2f^{-1}\left(x\right)=\left(x+7\right)^2  

 f−1(x)=x2+7f^{-1}\left(x\right)=x^2+7  

 f−1(x)=(x−7)2f^{-1}\left(x\right)=\left(x-7\right)^2  

 f−1(x)=x2−7f^{-1}\left(x\right)=x^2-7  

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