Question

The system of equations graphed below has how many solutions? y= 2x+2, y=2x

Answer 1

Y = 2x + 2
Y = 2x -
Subtract

0 = 2

This makes no sense meaning the lines are parallel. Therefore there are 0 solutions.

Answer 2

0 solutions. Using the slope-intercept form y=mx+b, you can tell that the slope m for both lines is 2. Two lines that have the same slope are parallel. Since they are parallel, they don't intersect, hence there are no solutions to the system.