Investigating Rate of Change

In this activity students will compare slopes of lines with a y-intercept of zero. They'll use their comparisons to learn how to write the equations of lines of the form y=ax. Then they will determine the slope based on two points on a line. Inspired by Investigating Rate of Change from an Equation by Caleb Rothe: https://teacher.desmos.com/activitybuilder/custom/5673095054bf1351078e195d#

By Mary Bourassa