Answer:
Your rate of change is [tex]\frac{3}{2}[/tex].
Step-by-step explanation:
Well, all you have to do is subtract the points.
[tex]\frac{changeiny}{changeinx} \\\\\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\\frac{9-7.5}{6-5}\\\\\frac{1.5}{1}[/tex]
This is also know as the rate of change of [tex]\frac{3}{2}[/tex].