Evaluating Functions Using Function Notation

If f(x) = 2x² + 5x - 3, evaluate f(-1).

• f(-1) = -6

• f(-1) = 1

• f(-1) = -10

• f(-1) = -1

Evaluate f(-2) if f(x) = x²+ 3

• -1

• 1

• 7

• -7

If h(x) = -5x + 7,

Evaluate h(2).

• -2

• 3

• -18

• -3

Given h(x) = 5 - 9x, find h(8).

• h(8) = -360

• h(8) = -67

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

• f(-1) = -20

• f(-1) = -24

Given h(x) = -x²+3x, find h(5). 

• h(5) = 40

• h(5) = -10

For the function f(x) = -3x + 3 find f(0).

• 0

• -3

• 3

• -1

If f(x) = 3x - 9, find f(5).

• f(5) = 6

• f(5) = 16

• f(5) = -4

• f(5) = 24

Find f(2)

• 5

• 4

• 3

• 0

Is the relation a function? Why?

• Yes, because the x-value 11 has two y-values paired with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values paired with it.

• No, because each x-value has only one y-value paired with it.