How to find instantaneous rate of change for #f(x)=4 ·x^2+4 ·x−3# when x=4?
1 Answer
Jun 2, 2016
36
Explanation:
The
#color(blue)"instantaneous rate of change"# is the value of f'(4)
#f(x)=4x^2+4x-3rArrf'(x)=8x+4# and f'(4) = 8(4) + 4 = 32 + 4 = 36
