CalculusChallengeThe Derivative ShareThe Derivative · Challenge problemLet g(x)=f(x)+8g(x) = f(x) + 8g(x)=f(x)+8 where f′(13)=21f'(13) = 21f′(13)=21. What is g′(13)g'(13)g′(13)?Check Show answer Walk through it step by step Practice more like this Review this concept