Solve the following system of equations graphically on the set of axes below. y= -2x-7 x−y=−8

Answer 1

the 1st equation is downward sloping with slope = -2 and y intercept -7

the 2nd equation is upward sloping with slope = +1 and y intercept of +8

the 2nd equation is equivalent to y = x+8, the 2nd is y=-2x-7

set them equal: x+8 = -2x-7

3x = -15

x = -5

y= 3

the two lines intersect at the point (-5,3) in quadrant II