Solutions to Equations with Two Variables
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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18 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the solution to the system?
(-1, 3)
(-3, 1)
(3, -1)
(-3, -1)
Tags
CCSS.8.EE.C.8B
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the number of solutions to the system of equations? (Notice there are two lines graphed one on top of the other.)
No Solution
Infinitely Many Solutions
One Solution
Two Solutions
Tags
CCSS.8.EE.C.8A
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
To Find the solution to this system of equations, Juan decided to multiply the entire first equation by -1. What method is Juan employing to find the solution?
Substitution
Graphing
No Solution
Elimination
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the first step Terri could take to find the solution to the system of equations using the Elimination Method?
Multiply by -1 through one equation to flip the signs and create opposite y-values.
Multiply by -1 through one equation to flip the signs and create opposite x-values.
Multiply by 1 through one equation to flip the signs and create opposite y-values.
Isolate a variable and substitute the value in the other equation.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve for y:
2x + 2y = 6
y = - x + 3
y = x + 3
y = 2x +6
y = - 2x + 6
Tags
CCSS.6.EE.C.9
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rewrite the equation in STANDARD form.
-2x+20=-5y
2x+5y=20
2x-5y=20
20=2x-5y
-2x+5y=-20
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve -7x + 7y = 21 for y
y = 3x + 3
y = -3x + 3
y = x + 3
y = x - 3
Tags
CCSS.6.EE.C.9
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