Algebra DR Unit 8 Quiz 2 Practice

Evaluate

 $f\left(x\right)=\left|x\right|-8$  when  $x=-1$  

Evaluate

 $f\left(x\right)=\frac{1}{2}\left|x+12\right|-3$  when  $x=-4$  

Evaluate

 $f\left(x\right)=\left|x+3\right|$  when  $x=1$  

Evaluate f(2).

• f(2) = 5

• f(2) = 12

• f(2) = 10

• f(2) = 0.5

What is x if
f(x) = -2?

• 4
• 0
• 3
• 8

Evaluate f(33)

• 33
• 11
• 10
• 8

f(x) is the same thing as ______.

• y
• x
• input
• an equation

How do you read f(x)?

• f x

• f of x

• f parenthesis x

• f with an x inside parenthesis

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

$f\left(x\right)=5x-12$ What is $f\left(-4\right)$

• -32

• -3

• -12

• 3