No.145 Rate of Change: Linear vs. Inverse Proportion
POINT
A linear function has a constant rate of change. An inverse proportion does not have a constant rate of change.
Example
1
As x increases from 2 to 4, find the rate of change. ① y=3x-2 ② y=24/x
① \(3\)
② \(-3\)
② \(-3\)
TRY
TRY 1
As x increases from 1 to 3, find the rate of change of y=2x+5.
\(2\)
TRY 2
As x increases from 2 to 6, find the rate of change of y=36/x.
\(-3\)