Define, Evaluate, and Compare Functions

Evaluate f(-2) if f(x) = x+3

• -1

• 1

• 5

• -5

Given 
f(x)= 2x² + 5x - 17, find f(-1). 

• f(-1) = -20

• f(-1) = -24

What is the range of the relation shown on the mapping diagram?

• R:{3, 5, 8}

• R:{-7, 11}

• R:{3, 5, 8, 12}

• R:{all real numbers}

The GPA of a student can be predicted using the equation
y = 1.4 x + 1.4  where x is the hours the student spends studying.  What is the expected GPA of a student that spends no hours studying?

• 2.4

• 1.4

• not enough information

• 2.8

f(x)=x²-5x
f(4)=

• -4

• 126

• 24

• 84

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

• -8

• 10

• -144

• answer not here

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

How do you read f(x)?

• f x

• f of x

• f parenthesis x

• f with an x inside parenthesis

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