Unit 3 Review

What is the inverse function of 

 $f\left(x\right)=\frac{x+4}{4}$  

•  $f^{-1}\left(x\right)=\frac{-x+1}{3}$  

•  $f^{-1}\left(x\right)=4x-4$  

•  $f^{-1}\left(x\right)=\frac{2x-20}{5}$  

•  $f^{-1}\left(x\right)=x-1$  

What is the domain of the graph?

• -7 ≤ x < 5
• -3 ≤ x < 1
• -3 ≤ y < 1
• -7 ≤ y < 5

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the range?

• -3 < y ≤ 3
• -4 ≤ y < 5
• -4 ≤ y ≤ 5
• -3 < y ≤ 3

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Which of the following equations match the given graph?

• $y\le-\frac{5}{4}x+3$

  
  

• $y\ge-\frac{5}{4}x+3$

• $y<-\frac{5}{4}x+3$

• $y>-\frac{5}{4}x+3$

What inequality does the number line graph represent?

• x ≥ 3
• x > 3
• x < -3
• x ≤ -3

Tags

CCSS.6.EE.B.8

• $y<-\frac{3}{4}x-2$

• $y>-\frac{3}{4}x-2$

• $y\le-\frac{3}{4}x-2$

• $y\ge-\frac{3}{4}x-2$

-4x + 14 ≤ 54

• x ≥ - 10
• x ≤ -10
• x ≥ 10
• x ≤ 10

Tags

CCSS.7.EE.B.4B

4x - 3 ≥ 2x - 1

• x ≤ -1

• x ≥ -1

• x ≤ 1

• x ≥ 1

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

Given

 $f\left(x\right)=3x+10$  and  $g\left(x\right)=x-2$  
Find  $f\left(g\left(5\right)\right)$  

• 19

• 23

• -10

• None of these.

Given

 $f\left(x\right)=2x$   and  $g\left(x\right)=x^2+3$  
find  $f\left(g\left(x\right)\right)$  

•  $x^2+2x+3$ 

•  $4x^2+3$  

•  $2x^2+3$  

•  $2x^2+6$