Question

Find the derivative of f(x) = 5x + 9 at x = 2

Answer 1

if it's f'(x) , isn't it 5?

Answer 2

but mu options are
9

5

0

10

Answer 3

The derivative of f(x) = 5x + 9 is 5 everywhere.

Answer 4

yeah the answer is 5. do u understand?

Answer 5

http://www.mathsisfun.com/calculus/derivatives-rules.html
if you have trouble understanding try this it might help

Answer 6

thanks everybody