A1 M1 D3.5 Warm Up

f(x) is the same thing as ______.

• y
• x
• input
• an equation

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

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

 $Given\ f\left(x\right)=6x-10\ what\ is\ f\left(120\right)$  

•  $-10$  

•  $-4$  

•  $120$  

•  $710$  

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

• 10

• 2

• -2

• 0

What is f(2)?

• -4
• 8
• 0
• 5

What is the value of f(-5)?

• -2

• 2

• 4

• 0