Question

A student says that the slope pf the line for the equation y=20-15x is 20 and the y-intercept is 15. Find and correct the error. Worth 20 points

Answer 1

We have this equation for the slope is: y=mx+b which m is the slope and b is the y-intercept, so we have y=20-15x or y=-15x+20, and we already know that the slope is -15 and y-intercept is 20. As a result, the student's error is that he thinks that 20 is the slope because it is the first number. Hope it help!