Question

steps to find the average rate of change of f(x) from x=7 to x=5
f(x)=4x^2+3x

Answer 1

help :(

Answer 2

\(\bf f(x)=4x^2+3x \qquad x=7 \quad ...\quad x=5\\ \quad \\

\textit{rate of change}=\cfrac{f(7)-f(5)}{3}\)

Answer 3

3 accounts for the values in the range, that is 7, 6 , 5 " 3 values"

Answer 4

where did the 3 come from?

Answer 5

7, 6 , 5 = " 3 values"

Answer 6

oh i figured it out thanks