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Is it a solution?
Graphing
Substitution
Elimination
100
Is the point (0,3) a solution to this set of equations? x + y = 3 2x - y = 6
Not a solution (but (3, 0) is a solution!)
100
How many solutions are there in a system of equations with equal slopes?
Zero
100
Solve by substitution: x = 0 x - 2y = 4
(0, -2)
100
x + y = 3 x - y = 7
(5, -2)
200
Is (-9, -2) a solution to the following set of equations? x - 6y = 3 x - y = -7
Yes, this point satisfies both equations
200
How many solutions does a system of equations represented by two perpendicular lines have?
One
200
Solve by substitution: y = -3 y = 2x + 3
(-3, -3)
200
3x + y = -3 4x + y = -4
(-1, 0)
300
Solve by graphing: x - y = 2 x + y = 4
(3, 1)
300
-4 = 2x - y x = 2y + 1
(-3, -2)
300
7p + 4q = -12 4p + q = -3
(0, -3)
400
y = -3 + (1/3)x y = -2x + 4
(3, -2)
400
5x - 3y = 0 -3x +2y = 9
(27, 45)