Equation Basics
The letter we use for y-intercept
What is b
y = x + 4
y = 2x + 5
r + s = -6
r - s = -10
x = 4y
2x + 3y = 22
The solution to the system of equations:

What is infinite solutions?
8a + 5b = 9
2a - 5b = -4
y = x - 2
3x - y = 16
The solution to this system is
no solution
2x + 3y = 6
3x + 5y = 15
y = 3x - 1
7x + 2y = 37
The solution to the system of equations is
What is (4, 5)
2a - 4b = 12
-8a + 16b = -48
3s - 2t = 4
t = 2s - 1
An equation written in standard form looks like
Ax + By = C
The solution to the system of equations:
y = 3x + 3
y = 3x - 2
What is no solution?
(1/3)x + (1/4)y = 10
(1/3)x - (1/2)y = 4
t + u = 12
t = (1/3)u