Find the slope of the line determined by the two points (3,-4) and (8,12)
the change in the y-coordinate divided by the change in the x-coordinate
... "rise over run" is a handy memory helper
(12 - -4) / (8 - 3) = ?
... "rise over run" is a handy memory helper
(12 - -4) / (8 - 3) = ?