Local Max: x=3
Local Min: x=-9
The initial expression is:

So we can solve for r so:
I hope this helps.....
Explanation:
I took this in 9th grade so I know how to do this kind of stuff
Hey there!
Here is a graph of the points:
A scatterplot is a graph, but the points won't be able to connect in a straight line, and they have no relation.
A line of best fit is a line that goes evenly through the points, or as best as it could.