Question

Find the derivative of f(x) = 8x + 4 at x = 9.

Answer 1

what is the derivative of 8x+4?

Answer 2

idk

Answer 3

@dan815 @ganeshie8 @Miss.SweetiePie

Answer 4

if y = ax^n
derivative is anx^(n-1)

Answer 5

now plug in a = 8 and n = 1 into ax^n

and see what you get

Answer 6

8x^1

Answer 7

ok now plug those values of a and n into anx^(n-1) to get the derivative

Answer 8

these r the options
0
4
8
9

Answer 9

derivative = 8*1x^(1-1) = ?

Answer 10

http://openstudy.com/study#/updates/51c65e5ee4b055e613b92dfb

Answer 11

thanks @stratemeyerjr

Answer 12

= 8 x^0
what is x^0 equal to ?

Answer 13

thank @welshfella :) he put in the effort