Test 2 Review

Which set of values shows y as a function of x?

• (9,5) (10,5) (9,-5) (10,-5)

• (3,4) (4,-3) (7,4) (3, 8)

• (6,-5) (7, -3) (8, -1) (9, 1)

• (2, -2) (5, 9) (5, -7) (1, 4)

Does the relation show y as a function of x

• Yes, because it passes the vertical line test, touches 1 time

• No, because it fails the vertical line test, touches twice

• Yes, because it passes the vertical line test, touches 2 times

• No, because the points are not connected.

WORK REQUIRED

 $f\left(x\right)\ =\left(\ x+5\right)^2+10$  

Find  $f\left(3\right)$  

• 38

• 74

• 26

• 14

WORK REQUIRED

For the function  $f(x)=-3(x-1)$  

find  $f\left(0\right)$  

• 0

• -3

• 3

• -1

WORK REQUIRED

What is the equation  $3x-2y=-16$  solved for y?

•  $y=-\frac{3}{2}x+8$  

•  $y=\frac{3}{2}x-8$  

•  $y=\frac{3}{2}x+8$  

•  $y=-\frac{3}{2}x-8$  

WORK REQUIRED

Which of the following equations is equivalent to $y-8=4\left(x-3\right)$  

•  $y=4x+4$  

•  $y=-4x-4$  

•  $y=4x-4$  

•  $y=-4x+4$  

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

In the equation, y = mx + b, the letter b is the ___________.

• y-intercept
• x-intercept
• slope
• rate of change

What is the slope of the equation?
y = -3x + 4

• -3
• 3
• 4
• -4

Which is the graph of y= -x + 2?

• A
• B
• C
• D