Answer:
The two graphs difference by the y-intercept.
Explanation:
If we look at the slope-intercept of linear equations
where m is the slope and b is the y-intercept.
The equation y = 2x has a slope of 2 and a y-intercept of 0. On the other hand, y = 2x -7 has a slope of 2 and a y-intercept of -7.
Moreover, the equation y = 2x represents a proportional relationship (in simple terms it means the y-intercept is zero) whilst y = 2x -7 is non-proportional.
With all that in mind, we see that the correct statements to choose are
y = 2x is proportional and y = 2x - 7 is non-propotional.
y = 2x has a vertical intercept of (0, 0) but y = 2x -7 has a vertical intercept of (0, -7).