Evaluating Functions with Function Notation

Evaluate f(x)=-2x+13   for f(10)

• -7

• 1

• -8

• 7

f(x)=x²-5x
f(4)=

• -4

• 126

• 24

• 84

Evaluate f(x) = x² for f(-8)

• 64

• -64

• -16

• 16

Evaluate f(t)=-2t²+ 1 for f(2)

• 9
  

• 17

• -17

• -7

g(x) = 5 - 6x
Find g(-5)

• g(-5) = -25

• g(-5) = 6

• g(-5) = 4

• g(-5) = 35

Evaluate the function for the given value:

• 50

• 6

• 84

• -4

Evaluate the function for the given value:

• -5

• 63

• 450

• 5

A company is selling bubble gum.  The function g(x)=3x+4 tells the company how much to charge if someone buys x packages of bubble gum.  Find g(8) and tell what it means within the context of the problem.

• g(8)=8.  This means that after 8 packages of gum, the company makes $8.

• g(8)=42.  This means that 8 packages of gum costs $42.

• g(8)=28.  This means that 8 packages of gum costs $28.

• g(8)=24.  This means that 8 packages of gum costs $24.

g(x) = 3x + 1
g(2) = _______

• 6

• 7

• 8

• 9

Evaluate for f(1)

• 0

• -3

• 3

• 2