Function notation

Question

Given g(x)=-2x- 1,find g(-4)

Answer 1

g(-4) just means that you are supposed to plug in "-4" for "x" in the function g(x). So since g(x) = -2x - 1 then g(-4) = -2(-4) - 1 = 8 - 1 = 7

Answer 2

g(-4) means find the value of the function g when x = -4

plug in -4 for x in the given equation

g(-4) = -2(-4) - 1

g(-4) = 8 - 1

g(-4) = 7