y = x + 4
y = 2x + 5
The solution to the system of equations:
s + r = -6
-s + r = -10
What is (-8, 2)?
The solution to the system:
x = 4y
2x + 3y = 22
What is (8, 2)
The sum of two numbers is 104. Their difference is 68. What are the numbers?
What are 86 and 18?
What happens if the lines of two equations never touch
no solution
y = 3x - 2
y = -x - 2
The solution to the system:
-4x + 5y = 17
4x+ 6y = -6
What is (-3, 1)?
The solution to the system
y = x - 2
3x - y = 16
What is (7, 5)
A shopper bought 6 shirts and 8 hats for $700. A week later, at the same prices, he bought 9 shirts and 6 hats for $660. What was the cost of one shirt?
What is $30?
What happens if the lines on a graph lie on top of eachother?
Infinite solutions
y = -3
x = 5
The solution to the system:
2x + 3y = 6
3x + 5y = 15
What is (-15, 12)?
The solution to the system
y = 3x - 1
7x + 2y = 37
What is (3, 8)
What happens if two lines on a graph intersect?
One solution
y = (1/3)x - 3
2x - y = 8
The solution to the system
2a - 4b = 12
-8a + 16b = -48
What is infinitely many solutions?
The solution to the system
3s - 2t = 4
t = 2s - 1
What is (-2, -5)
y - 3x = 3
y = 3x - 2
The solution to the system:
2x + y = 7
x - 2y = 6
What is (4, -1)
The solution to the system
t + u = 12
t = (1/3)u
What is (3, 9)?