Question

Algebraically calculate the slope of the line passing through the coordinates (1, 2) and (3, 8).

Answer 1

3

Explanation:

Remember that slope = rise over run, or change in y / change in x. Coordinates are in the form (x, y).

So with the points (1, 2) and (3, 8):

`(y2-y1)/(x2-x1) = (8-2)/(3-1) = (6)/(2)` = 3

The slope is 3.