Solve by ELIMINATION
What variable will be eliminated?
2x-9y=2
x+9y=5
The y variable will be eliminated
What kind of lines have no solution?
Parallel lines
What is the name of the kingdom in the movie Frozen?
Arendelle
How many Teenage Mutant Ninja Turtles are there?
4
What are the first 5 digits of pi?
3.1415
When solving by elimination, what is the first step?
Make sure that the variables are lined up. (equations are in standard form)
Solve the systems of equations using substitution.
x = 5
x + y = 12
(5, 7)
Which country does Lionel Messi come from?
Argentina
1914
How many years is in a millennium?
1000
2x-3y=9
2x+7y=1
Multiply the top equation by a negative 1
Without graphing how can you determine the system has no solution?
y=2x-5
y=2x+7
The slope is the same therefore the lines will be parallel and never touch
What is the name of the actress who plays Regina George in Mean Girls?
Rachel McAdams
Which countries share the longest border in the world?
US and Canada
How many feet are in a mile?
5280
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
What should you always do after you have solved the system?
Check the answers by substituting them back into both equations and see if they make a true statement
Who won Miss Universe 2021?
Miss India
What is the shallowest ocean in the world?
Arctic Ocean
I am four times older than my son. In 20 years’ time, I will be twice as old as he is. How old are we now?
40 and 10
Solve using elimination method
2x+4y=3
3x+6y=8
No solution
Solve the systems of equations using substitution.
x -5y=36
2x+y=-16
(-4,-8)
Who was TIME's person of the year for 2021?
Elon Musk
Which is the nearest galaxy to the Milky Way?
Andromeda
What is a shape with 14 sides called?
tetradecahedron