Question

If ƒ(x ) = x 2 + 1 and g(x ) = 3x + 1, find ƒ(-1) + 5g(-3).

-40
-38
7

Answer 1

@imqwerty

Answer 2

@tkhunny

Answer 3

Have you considered substituting the given values and evaluating the expression?

Answer 4

well i mean im in online classes and no teacher to really give me a better concept of the work

Answer 5

Example
h(x) = 3x -1
h(1) = 3(1) - 1 = 3-2 = 2
h(-2) = 3(-2) - 1 = -6-1 = -7
h(7) = 3(7) - 1 = 21 - 1 = 20

That's all you need. That's what function notation does.