Solve Systems by Substitution
Solve Systems by Substitution I
Solve Systems by Graphing
100
y = 8
y = x + 1
What is (7, 8)
100
y = −2
4x − 3y = 18
What is (3, −2)
100
What is the solution?
(-1,1)
200
x = 6
2x - y = 5
What is (6, 7)
200
y = x + 5
y = 6
What is (1, 6)
200
Solve by graphing.
y = -5x + 3
y = -2
(1,-2)
300
−7x − 2y = 1
y = −4
What is (1, −4)
300
y = 2x
y - x = 15
What is (15, 30)
300
DOUBLE POINT PROBLEM! Solve Using Graphing:
y = 5/3x + 2
y = -3
400
𝑥 = −7𝑦
2𝑥 − 8𝑦 = 22
What is (7, −1)
400
𝑦 = 4𝑥 − 9
𝑥 − 𝑦 = 3
What is (2, −1)
400
Solve the systems of linear equations by graphing:
4y = x - 8
-3x + 2y = 6
500
y = x + 3
y = -2x - 3
What is (-2, 1)
500
y = x − 6
y = 8x + 1
What is (−1, −7)