Find the slope of the line passing through the points (-9,12) and (14,-34).
Slope = (Y2 - Y1)/(X2 - X1)
It doesn't matter which data points you call 1 and 2. You will get the same answer.
Try [12 - (-34)]/[-9 - 14] = ?
It doesn't matter which data points you call 1 and 2. You will get the same answer.
Try [12 - (-34)]/[-9 - 14] = ?