
12/10 warm up fom
Authored by Mary Ann Aparri
Mathematics
9th Grade
CCSS covered
Used 1+ times

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8 questions
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1.
OPEN ENDED QUESTION
5 mins • 6 pts
Before you begin:
Remember to LOOK FOR THE VARIABLES THAT WILL ELIMINATE TO EQUAL ZERO.
1. Line them up and look for the zero pair. If you need to, MULTIPLY to make a zero pair.
2. ADD the equations.
3. SOLVE for the variable. (find x= or y=)
4, Find the OTHER variable. Substitute the x= or y= you found in step #3.
"TYPE YES" when you have read the steps.
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Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
5 mins • 6 pts
What is the best first step to solve this system by elimination?
Add the equations to eliminate y
Subtract the equations to eliminate y
Multiply the second equation by 3.
Multiply the first equation by 2
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
5 mins • 6 pts
The solution to a system of linear equations is ALWAYS...
a fraction
an ordered pair
a decimal
a negative number
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
5 mins • 6 pts
Solve the system of linear equations
-2x - 10y = 22
2x + 5y = -12
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
5 mins • 6 pts
Which variable do you add to ELIMINATE (equal zero)?
the x variables will equal zero
the y variables will equal zero
the numbers without variables will equal zero
What's a variable?
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
5 mins • 6 pts
Solve by elimination
-6x + 5y = 1
6x + 4y = -10
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
5 mins • 6 pts
Let's multiply the top equation by -2. What would be our new equation?
2x + 3y = 12
4x - 7y = - 54
4x - 6y = -24
-4x - 6y = 12
-4x - 6y = 24
-4x - 6y = -24
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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