Determining Solutions
(1, -4) is a solution of x-2y=8 and 4x-y=8
No
Solve by graphing: y = -2x+3 and y = 2/3x − 5
3, -3
Solve by substitution: y=5x-10 and y=3x+8
9, 35
Solve by elimination x + 2y = 7 and 3x − 2y = −3
1, 3
(-2, 1) is a solution of 2x-3y=-7 and 3x+y=-5
Yes
Solve by graphing: y =1/2x + 2 and −2x + 4y = 24
no solution
Solve by substitution: Y=x+5 and 4x+y=20
3, 8
Solve by elimination: -x+y=5 and x-5y=-9
-4, 1
(0.5, 3) is a solution of 4x=y-1 and 6x-2y=-3?
Yes
Solve by graphing: y =1/2x + 2 and y = −x − 1
-2, 1
Solve by substitution: Y=4x+3 and 2x-3y=21
-3, -9
Solve by elimination: 2x+3y=12 and 5x-y=13
-3, -9
How many solutions? 3x+y=6 and y=-3x+2
No Solution
Solve by graphing: −2x − 1 = y and x = −y + 3
-4, 7
Solve by substitution: x+2y=-1 and 4x-4y=20
3, -2
Solve by elimination: 2x+4y=-4 and 3x+5y=-3
4, -3
How many solutions? -9x-3y=-18 and 3x+y=6
Infinitely Many Solutions
Solve by graphing: 2x + y = 12 and −3y − x = −11
5, 2
Solve by substitution: 4x + y = 8 and 2x + 2y = 10
1, 4
Solve: 5x + 9y = 112 and 3x − 2y = 8
8, 8