Question

If f(x)=10x+7 and g(x)= x^2-7x, find (f-g)(x).

Answer 1

Answer:

Choice C. $(f-g)(x)=-x^2+17x+7$

Step-by-step explanation:

Recall that $f-g$ is defined by

$(f-g)(x)=f(x)-g(x)$

Therefore we compute

$(f-g)(x)=f(x)-g(x)=10x+7-x^2+7x=-x^2+17x+7$