Question

Find the derivative of f(x) = 7 divided by x at x = 1.

Answer 1

Answer:

Step-by-step explanation:

f(x)=\frac{7}{x}=7x^{-1}

f'(x)=7(-1)x^{-2}=-\frac{7}{x^2}

f'(1)=-7/1=-7