Question

Find the average rate of change of f(x) = 3x² - 5 on the interval [4, t]. Your answer will be an expression

involving t

Answer 1

Answer:
`(3t^(2)-48 )/(t-4)`

Explanation:

Rate of change is still rise/run or your y's/x's

When x=4, y=3(4)²-5=43

When x=t, y=3t²-5

rate of change =
`(3t^(2)-5-43 )/(t-4)` =
`(3t^(2)-48 )/(t-4)`