Graphs
Substitution
Elimination
Random
Review
100
(5,2)
100
3x − 10y = 15
x = –5
(-5, -3)
100
–5x − 8y = –13
–6x + 8y = 2
(1, 1)
100
What was Mr. Delk's least favorite subject in school?
English
100
What does DCMAM stand for? (Song)
Dont Call Me After Midnight
200
(2, -7)
200
3x − 3y = 18
y = –10
(-4, -10)
200
6x − 8y = –10
–7x + 8y = 13
(-3, -1)
200
What is Mr. Delk's Favorite Birthday dinner
Enchiladas
200
What does the the the capital letter really stand for? Dcmam
Distribute
300
None, parallel lines
300
-2x + y = 10
y = 3x
(10, 30)
300
-2x + y = 0
x + y = 9
(3, 6)
300
Lines that are the same have how many solutions?
Infinite Solutions
300
What does the the the capital letter really stand for? dcMam
Move variables to one side
400
Graph the system and find the solution. y = 2/5x – 3 y = -5
(-5, -5)
400
y = –9x + 9
y = –6x + 3
(2, -9)
400
–10x + 8y = –20
2x − 3y = 11
(-2 , -5)
400
How are solutions to systems of equations expressed?
ordered pairs in the form (x,y)
400
What is the goal in step one of substation?
Isolate one variable
500
Graph the system and find the solution. y = –3/5x – 1 y = -4/5x
(5, -4)
500
9x − y = –1
y =4x – 4
(-1, -8)
500
–8x + 9y = –14
–7x + 3y = 17
(-5, -6)
500
List all the methods for solving systems of equations.
Elimination, Substitution, & graphing
500
What is the goal for step one of the elimination method?
Eliminate one of the variables