Question

Jaz was 43 inches tall. Eighteen months later she was 52 inches tall. find the constant rate of change for Jaz's height

Answer 1

Ok so to solve this you need to make an equation right? So because she is 43in already it would be 43+x=53. Does that help?

Answer 2

*** 43+x=52

Answer 3

You can solve this problem by using the slope formula.
\[m=\frac{ y_2 -y_1 }{ x_2-x_1 }\]
Use the two heights and times as points on a graph.
(0,43)
(18,52)

Plug in the numbers:
\[m=\frac{ 52 -43 }{ 18-0 }\]
\[m=\frac{ 9}{ 18 }\]
\[m=\frac{ 1}{ 2}\]
The constant rate of change for Jaz's height is:

0.5inches per month