Question

If f(x)=3x+2 and g(x)=x-1/3 what is the value of f{g(7)}

Answer 1

Answer:

f(g(7)) = 22

Step-by-step explanation:

First find the general form of the new equation, f(g(x)):

f(x)=3x + 2

g(x)=x - 1/3

f(g(x)) = 3(x - 1/3) + 2

You can simplify that, or alternatively just plug in 7 now and solve:

f(g(7)) = 3(7 - 1/3) + 2

f(g(7)) = 3(20/3) + 2

f(g(7)) = 20 + 2

f(g(7)) = 22