Question

A student graphed the line y = 3x + 2 plotting and connecting points A, B, and C. How can the student use points A, B, and C to find the graph of y =3x - 5?

Answer 1

The student has to translate the points A, B and C 7 units down to create points A', B' and C', and then connect these points

Explanation:

The slope of the lines is the same (3). The difference between the lines is their y-intercept (from the first line is 2 and for the second one is -5). This means that the lines are parallel and separated by 2 - (-5) = 7 units