ET 20: Evaluating Functions

f(x) = 4x + 5

Find f(4)=

Hint: Remember plug 4 into "x" and solve using Order Of Operations.

• f(4) = 21

• f(4) = -11

• f(4) = -31

• f(4) = 25

Given f(x) = x²

Evaluate f(-8)

Hint: Remember plug -8 into "x" and solve using Order Of Operations.

• f(-8) = 64

• f(-8) = -64

• f(-8) = -16

• f(-8) = 16

Given g(x) = 5 - 6x

Evaluate g(-5)

Hint: Remember plug -5 into "x" and solve using Order Of Operations.

• g(-5) = -25

• g(-5) = 6

• g(-5) = 4

• g(-5) = 35

Given f(x) = 3x² - 11

Evaluate f(-5)

Hint: Remember plug -5 into "x" and solve using Order Of Operations.

• f(-5) = 64

• f(-5) = -86

• f(-5) = 214

• f(-5) = -7

Given f(x) = -2x - 12

Evaluate f(-5)

• f(-5) = -22

• f(-5) = -2

• f(-5) = -19

• f(-5) = -5

f(x)=x²-5x
f(4)=

• -4
• 126
• 24
• 84

Tags

CCSS.HSF.IF.A.2

Given f(t)=-2t²+ 1

Evaluate f(-3)

• f(-3) = 19

• f(-3) = 37

• f(-3) = -17

• f(-3) = -11

Given

f(x)= 2x² + 5x - 17, find f(-1).

• f(-1) = -20

• f(-1) = -24

• f(-1) = 20

• f(-1) = 24