Graphing Systems
y = 4x + 3
y = -x - 2
(-1, -1)
DOUBLE JEOPARDY!! Worth 200 pts
y = -2
4x - 3y = 18
(3, -2)
8x + y = -16
-3x + y = -5
(-1, -8)
Slope intercept form
What is y = mx + b
y = -1
y = -5/2x + 4
(2, -1)
2x - 3y = -1
y = x - 1
(4, 3)
7x + 2y = 24
8x + 2y = 30
(6, -9)
DOUBLE JEOPARDY!! Worth 400 pts
In slope intercept form, b stands for this
What is the y-intercept
2x + y = 1
2x - y = 3
(1, -1)
-3x - 3y = 3
y = -5x - 17
(-4, 3)
DOUBLE JEOPARDY!! Worth 600 pts
5x + y = 9
10x - 7y = -18
(1, 4)
At a store, Sydney bought two shirts and five hats for $154.00. Paige bought three shirts and four hats for $168.00. Set-up the system of equations.
2s + 5h = 154
3s + 4h = 168
DOUBLE JEOPARDY!! Worth 800 pts
y = -2x + 2
y = -2x - 2
No Solution
-4x + y = 6
-5x - y = 21
(-3, -6)
-x - 7y = 14
-4x - 14y = 28
(0, -2)
The difference of two numbers is 3. Their sum is 13. Find the numbers.
5 and 8
2x + y = -4
x + 4y = 12
(-4, 4)
-7x - 2y = -13
x - 2y = 11
(3, -4)
3 + 2x - y = 0
-3 - 7y = 10x
(-1, 1)
The math department took a field trip. A total of 21 vehicles were needed for the trip. Some students took the bus, and some students car-pooled. There were 30 people on each bus and 4 people in each car. 318 people altogether attended the trip. How many buses and cars were needed for the trip?
9 buses and 12 cars