y = 3x - 2
y = -x - 2
4x-7y=28
x int: (7,0)
y int: (0,-4)
8a + 5b = 9
2a - 5b = -4
The solution to the system
y = x - 2
3x - y = 16
What is (7, 5)
y = -3
x = 5
Convert to slope intercept form
10x-5y=-25
y=2x+5
2x + 3y = 6
3x + 5y = 15
y = 3x - 1
7x + 2y = 37
y = x + 4
y = 2x + 5
What is the equation for standard form and slope intercept form?
Slope: y=mx+b
Standard: Ax+By=C
r + s = -6
r - s = -10
At Freddy’s, three steak burgers and two orders of fries cost $18. Two steak burgers and three orders of fries cost $15.75. What is the cost for one steak burger? What is the cost of one order of fries?
3b+2f=18
2b+3f=15.75
fries= 2.25
burger= 4.50
x = 4y
2x + 3y = 22
y = (1/3)x - 3
2x - y = 8
Convert to standard form
y=3/4 x +6
3x-4y=24
2a - 4b = 12
-8a + 16b = -48
Abby filled her goodie bags with 4 cookies and 3 candy bars and spent a total of $10.25 per bag. Marissa filled her goodie bags with 2 cookies and 7 candy bards and spent a total of $14.75 per bag. Each cookie costs the same amount. Each candy bar costs the same amount. Write a system of linear equations that can be used to find the cost of one cookie (x) and one candy bar (y). What was the cost, in dollars of each item?
4x+3y=10.25
2x+7y=14.75
cookies = $1.25
candy bar= $1.75
3s - 2t = 4
t = 2s - 1
The solution to the system of equations:
3y=-5x+5
3y=-5x-3
What is no solution? (parallel lines)
Graph to find the solution to the following system:
4x+2y=6
-6x+2y=6
(0,3)
The solution to the system:
(1/3)x + (1/4)y = 10
(1/3)x - (1/2)y = 4
What is (24, 8)
Christian sold tickets to the game. Good seats were $5 each and poor seats were $2 each. 210 people attended the and paid $660 total, Write a system of linear equations that can be used to find how many good seats (g) and poor seats (p) were sold. How many of each type were sold?
5x+2y=660
x+y=210
80 good seats
130 poor seats
t + u = 12
t = (1/3)u