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Substitution Equations
Elimination Equations
Graphs
Definitions
Misc.
100
3y - 2x = 11 y + 2x = 9
2,5
100
−4x − 2y = −12 4x + 8y = −24
6,-6
100
http://www.math.com/school/subject2/lessons/S2U4L3GL.html#sm3
plot the equation y=1/2x+4
100
putting numbers where the letters are
What is Substitution
100
7x + 2y = 24 8x + 2y = 30
6,-9
200
4x + y = 24 y = –4x + 24
5,4
200
4x + 8y = 20 −4x + 2y = −30
7,-1
200
y=5 http://math.tutorvista.com/algebra/graphing-linear-equations.html
graph y-5=0
200
the process of removing one of the variables in a system of equations using addition or subtraction in conjunction with multiplication or division and solving the system of equations.
What is Elimination
200
x + y = 1 x + 3y = 9
What is (-3, 4)
300
y = 6x − 11 −2x − 3y = −7
2,1
300
x − y = 11 2x + y = 19
10,-1
300
An equation that makes a straight line when it is graphed.
What is a Linear Equation
300
3x + y = 13 x + 6y = -7
What is 5, -2
400
2x − 3y = −1 y = x − 1
4,3
400
−6x + 5y = 1 6x + 4y = −10
-1,-1
400
How steep a straight line is
What is Slope
400
2x + 8y = 6 −5x − 20y = −15
Infinite solutions
500
y = −3x + 5 5x − 4y = −3
1,2
500
−2x − 9y = −25 −4x − 9y = −23
-1,3
500
An equation that defines a straight line
What is Equation of a Straight Line
500
x + 2y = 8 x - 2y = 4
What is 1,6