Slope-Intercept Form from Points - Examples & Practice

Ally and Brandee were working on building a ramp to ski down. After trying out their ramp they realized it was a good size and wanted to be able to duplicate the ramp. In order to do this, they need to know the equation of the line used to make the incline. Ally and Brandee chose to measure the height and length of the ramp at two different points. The first point they measured was 5 feet above the ground and 12 feet from the origin. The second point they measured was 3 feet high and nine feet from the origin.