Question

A pair of linear equations is shown below:

y = –3x + 5
y = x + 2

Which of the following statements best explains the steps to solve the pair of equations graphically?

Answer 1

On a graph, find the point of intersection of two lines; the first line has y intercept = 5 and slope = –3 and the second line has y intercept = 2 and slope = 1.

On a graph, find the point of intersection of two lines; the first line has y intercept = –3 and slope = 5 and the second line has y intercept = 1 and slope = 2.

On a graph, find the point of intersection of two lines; the first line has y intercept = –5 and slope = 3 and the second line has y intercept = –2 and slope = –1.

On a graph, find the point of intersection of two lines; the first line has y intercept = 3 and slope = –5 and the second line has y intercept = –1 and slope = –2.

Answer 2

In the equation y = mx + b, m is the slope and b is the y intercept