Question

Using the slope​ formula, find the slope of the line through the points (0,0) and (2,8). Use pencil and paper.

Explain how you can use mental math to find the slope of the line.

Answer 1

The slope of the line is 4.

Explanation:

Use the slope formula: (y2-y1)/(x2-x1) = the slope. Plug in the coordinates into the formula. (8-0)/(2-0) = 8/2 = 4. The slope is 4.