Solve by ELIMINATION
What variable will be eliminated?
2x-9y=2
x+9y=5
The y variable will be eliminated
Find the point of intersection.
y=x-3 and y=-x+7
(5,2)
Solve the systems of equations using substitution.
x = 5
x + y = 12
(5, 7)
This quarterback has won the most Super bowls; Bonus how many?
Tom Brady, 7
When solving by elimination, what is the first step?
Make sure that the variables are lined up. (equations are in standard form)
Find the point of intersection.
y=-3/2x-4 and y=-2x-3
(2, -7)
Solve the systems of equations using substitution.
y = 2x
x + y = 9
(3, 6)
Name on of the teams to never make a Superbowl
Browns, Lions, Texans, or Jaguars
2x-3y=9
2x+7y=1
Multiply the top equation by a negative 1
Find the point of intersection.
y=2x-1 and y=5x+1
(-1, -3)
Solve the systems of equations using substitution.
x -5y=36
2x+y=-16
(-4,-8)
The name of the trophy given to the winner of the Super Bowl
What is the Lombardi Trophy?
What can you multiply to eliminate one of the variables?
2x-8y=9
3x-3y=7
Top by 3 and bottom by -2
or
Top by -3 and bottom by 2
or
Top by 3 and bottom by -8
or
Top by -3 and bottom by 8
Find the point of intersection.
y=3x+2 and y=-3/2x+2
(0,2)
Solve the systems of equations using substitution.
x = 3y
x - 3y = 0
Infinitely many solutions
Name one of the two teams that played in the first Superbowl
Solve using elimination method
2x+4y=3
3x+6y=8
No solution
Find the point of intersection.
y=-2x-3 and y=-2x+4
None, parallel lines
Solve the systems of equations using substitution.
2x-3y=-24
x+6y=18
(-6,4)
Name one of the teams with the most Super Bowls in NFL history.
Who is the New England Patriots or the Pittsburg Steelers?