Question

Help Please!!!
Find lim h → 0 f(x+h)-f(x)/h for the given function and value of x.

f(x) = -4x -1, x = 5

Answer 1

Step-by-step explanation:

$\displaystyle \lim_{h \to 0} \dfrac{[-4(x + h) - 1] - (-4x - 1)}{h}$

$\displaystyle \:\:\:\:\:\:\:\:\:=\lim_{h \to 0}\dfrac{-4h}{h}$

$\:\:\:\:\:\:\:\:\:=-4$