Graphing
Elimination
Substitution
Best Strategy
K-8
100
y=-5/3x+3 y=1/3x-3
What is 3,-2
100
−4x − 2y = −12 4x + 8y = −24
What is (6,-6)
100
y = 6x − 11 −2x − 3y = −7
What is (2,1)
100
y=-2x+2 y=-2x-2
What is Graphing
100
7+6
What is 13
200
y=4x+3 y=-x-2
What is -1,-1
200
−6x + 5y = 1 6x + 4y = −10
What is (-1,-1)
200
−3x − 3y = 3 y = −5x − 17
What is (-4, 3)
200
8x+y=-16 -3x+y=-5
What is Elimination
200
8x6
What is 46
300
y=-1/2x-1 y=1/4x-4
What is 4,-3
300
4x + 8y = 20 −4x + 2y = −30
What is (7,-1)
300
−4x + y = 6 −5x − y = 21
What is (-3,-6)
300
x=4x+5 y=7x+6(7x+6)
What is Subsitution
300
8.1 + 8.2 + 8.3 + 6 / 5 x 3
What is 18.36
400
y=-1 y=-5/2x+4
What is 2,-1
400
-5x+y=-2 -5x+6y=-12
What is y=-6 x=1.25
400
−7x − 2y = −13 x − 2y = 11
What is (3,-4)
400
y=-1/2x-2 y=-3/2x+2
What is Graphing
400
10+10+10+10+10+10+10+10+1+1+1+1+1+1
What is 86
500
y=1/3x-3 y=-x+1
What is 3,-2
500
2x + 8y = 6 −5x − 20y = −15
What is an infinite number of solutions
500
2x + y = 20 6x − 5y = 12
What is (7,6)
500
7x+2y=24 8x+2y=30
What is Elimination
500
32 / 2 x 6 + 8 (9 - 6 x 100)
What is 2,496
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