Item 1 Solve the system by graphing. y=2x-3 y=-x+9 The solution is

Answer 1

1st equation is an upward sloping line with y intercept -3, x intercept 3/2, slope = 2

2nd equation is a downward sloping line with y intercept 9, x intercept 9 and slope =-1

for the 1st equation plot the intercepts (0,-3) and (3/2, 0) and connect with with a straight line and extend the

line upward into quadrant I.

for the 2nd equation plot the intercepts (0,9) and (9,0) and connect them with a straight line

the 2 lines intersect at (4,5) in quadrant I