Question

Determine the value of the function at each value. Support your reasoning.

a) f(-2)=

b) f(0)=

c) f(4)=

Answer 1

@jim_thompson5910

Answer 2

f(-2) means find f(x) when x = -2

Answer 3

ie, f(-2) means find y when x = -2

Answer 4

so A

Answer 5

when x = -2 notice how y = -2 because the point (-2, -2) is on the graph of f(x)

Answer 6

what about x = 0? when x = 0, what is y?

Answer 7

0?

Answer 8

good, so f(0) = 0

Answer 9

when x = 4, y is ___

Answer 10

2?

Answer 11

no

Answer 12

if there's an open circle, you ignore it

Answer 13

look for the closed circle when x = 4