Solve by elimination ie eliminate x or y from the equations by performing operations on them. first label the equations , to follow the process. x - y = 5 ----------------(1) x+ y = 3 ----------------(2) If (1) and (2) are added then y will be eliminated. (1) + (2) gives : 2x = 8 → x = 4 now substitute this value of x into either of the 2 equations and solve for y. let x = 4 in (1) : 4 - y = 5 → -y = 1 → y = -1 check in (1) : 4-(-1) = 4+1 = 5 check in(2) : 4 - 1 = 3
Not entirely sure, but it seem the answer could be B.) It will not be spread out vertically across the entire coordinate plane because in step 5, Nancy selected an incorrect scale on the y-axis.
