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Eduardwww [97]
3 years ago
11

Find the derivative of f(x) = -12x2 + 9x at x = 6. a) -112.5 b)-135 c)90 d)108

Mathematics
1 answer:
topjm [15]3 years ago
7 0

hi

f(x) = -12x²+9x

So

f'(x) =  -24x +9

if  x = 6   then  f'(6) = -24 (6) +9 = -135

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