Question

Given that f(x) = 5x - 10 and g(x) = x + 3, solve for f(g(x)) when x = -1

Answer 1

You want f(g(1)).

First compute g(1). Then whatever you get for g(1), you will use that number to find f(that number).

Answer 2

so g(-1)=-1+3

g=-2?

Answer 3

Sorry, you wanted at -1.

so compute f(g(-1)).

Answer 4

g(-1) = 2

so f(2) = ??

Answer 5

f(2) = 5(2) - 10 = 0.

Answer 6

You're welcome.

Answer 7

I get it... Thankyou!