Answer
f'(50) = 30
Work Step by Step
f'(50) = $\frac{f(55)-f(45)}{55-45}$
f'(50) = $\frac{600-300}{10}$
f'(50) = $\frac{300}{10}$
f'(50) = 30
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.