Question

Help with derivatives multiple choice..atached is the question

Answer 1

use product rule f' = 5x*h' + 5*h
f'(-6)= 5(-6)*4 + 5*-4 = -140

Answer 2

so teh first one is c right

Answer 3

how about teh second

Answer 4

2nd problem take the derivative and solve for that = 0

Answer 5

6x^2 - 12x -18 = 0
6(x^2-2x-3)=0
6(x-3)(x+1)=0
x=3 or -1, answer e i think

Answer 6

thanks for ur help!! =)

Answer 7

may i ask u one more

Answer 8

actually problem 2 is c

Answer 9

how did u get that

Answer 10

plug -1 back into the original equation and you get -16

Answer 11

i mean +16 =p

Answer 12

teh asnwer is still c though?