Using the formula y2 – y1/x2 – x1 to find slope
Ex. (5,-7)(7,5)
y2 – y1 is the y value of the second pair minus the y value of the first pair. In this case: 5 – (-7) which is equal to 5+7 = 12
x2 -x1 is the x value of the second pair minus the x value of the first pair. In this case: 7-5 = 2
This becomes 12/2 which is equal to 6