Question

given f(x)=-3x+4 and g(x)=x+7, what is the value of g(f(2))..explain it to me please..

Answer 1

f(2) = -3(2) + 4 =2 Now put 2 into g(x) = 2 + 7 = 9

Answer 2

gf(x) means 'the value of f at x substituted into the function g'.

Answer 3

sorry - f(2) = -2 and gf(2) = -2+7 = 5

Answer 4

g(f(2))=(-3x+4)+7
=-3x+4+7
= -3x+11
subtitution x=2
= -3(2)+11
= -6+11
= 5

Answer 5

If I deserve medal then give me one.

Answer 6

\[f(2) = -3\times 2+4=-6+4=-2\]
\[g(-2)=-2+7=5\]
Nancy Lam got it!