Review Semester 2 Test 1

Graph the inverse

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Graph the inverse (Hint: look at y=x)

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Which is f ^-1(x)?

• f ^-1(x) = 5x + 3

• f ^-1(x) = 5x - 3

• f ^-1(x) = 5x - 15

• f ^-1(x) = 1/5(x) + 3/5

Which is f ^-1(x)?

• f ^-1(x) = 3x + 5

• f ^-1(x) = 3x - 5

• f ^-1(x) = 3x - 15

• f ^-1(x) = 3x + 15

Find the inverse of y = (x+2)³ + 7

• y = ∛(x-7)-2

• y = ∛(x-2) -7

• y = (x - 7)³ -2

• y = (x-2)³ - 7

Which is f^-1(x)?

• f^-1(x)=4+∛(x+5)
• f^-1(x)=∛(x+4) +5
• f^-1(x)=5+(x+4)³
• f^-1(x)=4+(x+5)³

Find the inverse function of  $y=\left(x-4\right)^2+3$  

•  $y=\sqrt{x-3}+4$  

•  $y=\sqrt{x+3}-4$  

•  $y=\sqrt{x-3+4}$  

•  $y=\sqrt{3x+1}$  

Find the inverse of  $f\left(x\right)=\sqrt{x+2}+9$  

•  $f\left(x\right)=\left(x-9\right)^2-2$  

•  $f\left(x\right)=\left(x+9\right)^2+2$  

•  $f\left(x\right)=\sqrt{x+9}+2$  

•  $f\left(x\right)=\sqrt{x-9}-2$  

Find the inverse function of  $y=\sqrt{5x}$  

•  $y=\frac{1}{5}x^2$  

•  $y=5x^2$  

•  $y=10x^2$  

•  $y=\sqrt{3x+1}$  

What is the domain of the function in this graph?

• (-infinity, 3]
• [3, inifinity)
• (-infinity, 0]
• [0, infinity)