Elimination
Substitution
Elimination
Substitution
Randoms
100
x – y = −6 x + y = 8
What is (1, 7)
100
y= x y= - x + 2
What is (1, 1)
100
3x - y = 5 x + y = 5
What is (2, 1 )
100
6x + 7y = 20 y = 2x
What is (1, 2)
100
y = 3x y = x - 2 Show substitution
What is (-1, -3)
200
−2x + 3y = −1 2x + 5y = 25
What is (5 , 3)
200
y = −4 y = 2x − 8
What is (2, -4)
200
x + y = 2 2x - y = 7
What is ( 3, -1)
200
y = x + 3 y = 2x + 5
What is (-2, 1)
200
Substitution: y = x + 1 4x + y =6
What is (1, 2)
300
6x + 4y = 8 -x - 4y = 12
What is (4, -4)
300
y = -2x + 2 y= 3x + 2
What is (0, 2)
300
-3x - 4y = -2 6x + 4y = 3
What is ( 1/3, 1/4)
300
y = −8x 2x + 4y = 0
What is (0, 0)
300
How many terms? 6x + 2y - 4 + 2
What is 4 terms
400
x + 2y = 8 x - 2y = 4
What is (6, 1)
400
y = 4x – 10 y = 5 – x
What is (3, 2)
400
x + 3y = -7 -x + 2y = -8
What is (2, -3)
400
y = 6x − 11 −2x − 3y = −7
What is (2, 1)
400
List the domain: (0, 2) (2, 3) (4, 6) (5, 8)
What is 0, 2, 4, 5
500
-3 x - 4y = -2 6x + 4y =3
What is (1/3, 1/4)
500
y + x = 3 x = y + 5
What is (4, -1)
500
x + y = -7 x - y= 5
What is (-1, -6)
500
y = −2x + 1 2x − 2y = 4
What is (1, -1)
500
Identify the vertex of this graph: -2 (x + 3) -2
What is (-3, -2)
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