Question

Find g(–2) if g(x) = 4x + 3.
A.19
B.-11
C.-8
D.-5

Answer 1

Replace x with -2

4(-2) + 3

-8 + 3

= -5

D.

Answer 2

where does the g come in?

Answer 3

g(x)

Answer 4

is g(-2)

Answer 5

It replaced the x with -2 which you do with the other side as well. This is how the function works.

Answer 6

i understand the x part but why couldn't it just say x=-2? and the equation would = -2 instead of g(-2)

Answer 7

I don't know I didn't invent math. :/

Answer 8

lol thank you though!

Answer 9

Haha, no problem xD