Question

F(a) = 2a
gla) = 4a - 3
Find f(g(-1))

Answer 1

first deal with g(-1)

y=4a - 3

a=4y -3 and now make y the subject again

a+3/4...now put it into f(a)

2(a +3/4) simplyifying

a+3/2 as yo final ans