Warm-up Sept 20th

What is f(6) for the function f(x)=3x-8

• -8

• 10

• -144

• answer not here

What is  $f\left(0\right)$   for the function $f\left(x\right)=2x+3$  

• 2x

• -3

• 3

• 10

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

• -32

• -3

• -12

• 3

For the function f(x) = 4x + 2, find x such that f(x) = 2.

• 10

• 2

• -2

• 0

If f(x) = 2x+1, what would the function look like once you substitute in a 1 to find f(1)?

• f(x) = 21+1

• f(1) = 2 (1) + 1

• f(1) = 2x (1) + 1

If a question asks you to find f(2), what does that mean?

• Let x = 2

• Let y = 2

 $Given\ f\left(x\right)=\frac{3}{2}x+5\ what\ is\ f\left(12\right)?$  

•  $\frac{43}{2}$  

•  $20$  

•  $23$  

•  $5$  

What is the value of f(0)?

• -2
• 2
• 4
• 0

Evaluate f(5)

• 1
• 10
• 13
• 16

For what value of x does f(x) = -2?

• 0
• -5
• 3
• -3