Question

Find the average rate of change for the function between the given values.

f(x) = square root of 2x ; from 2 to 8

Answer 1

same as finding the slope of the two points on the line

Answer 2

\[f(x)=\sqrt{2x}\]
\[f(2)=2\]
\[f(8)=4\] so the two points are
\[(2,2)\] and
\[(8,4)\] now compute the slope