Mathematical Work: f(x)=x+8 g(x)=x2-6x-7 f(g(2))=(2^2-6(2)-7)+8 f(g(2))=(4-12-7)+8 f(g(2))=-7 Explanation: f(x)=x+8 g(x)=x2-6x-7 f(g(2))=? 2 was given as the x for function g and when you substitute 2 into function g's equation(g(2)=(2^2-6(2)-7)=-15, you would get -15. The answer to function g would be the x for function f. Which would be f(-15)=-15+8 and the answer for f(g(2)) is -7.
