Answer: m = -3
Step-by-step explanation: To get from (2, 3) to to (5, -3), we must
first go down 9 units so our rise is -9 and run 3 units to the right.
So our slope or rise over run is -9/3 or -3.
The variable that's used to represent slope is m.
So here, we would say that m = -3.
