(A1) Unit 5 Extra Credit solve linear systems
Authored by Janet Genord
Mathematics
8th - 11th Grade
CCSS covered
Used 2+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When solving the system below by "substitution" which equation and variable would be best to solve for?
4x + 2y = 8
x +7y = -11
1st equation; solve for x
1st equation; solve for y
2nd equation; solve for x
2nd equation; solve for y
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Solve the system. Remember to use parentheses and a comma.
example: (-1,4) (a) NOT... -1,4
4x + 2y = 8
x +7y = -11
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When solving this system by "elimination" what would be the best step to start with?
9x + 7y = -3
-9x - 3y = 27
add the 2 equations together to eliminate the "y"s
add the 2 equations together to eliminate the "x"s
multiply one of the equations by (-1) then add the equations to eliminate the "x"s
multiply one of the equations by (-1) then add the equations to eliminate the "y"s
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Solve the system. Remember to use parentheses and a comma.
example: (-1,4) (a) NOT... -1,4
9x + 7y = -3
-9x - 3y = 27
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When solving the system below by "substitution" which equation and variable would be best to solve for?
-8x + y = 6
4x + 7y = -19
1st equation; solve for x
1st equation; solve for y
2nd equation; solve for x
2nd equation; solve for y
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Solve the system. Remember to use parentheses and a comma.
example: (-1,4) (a) NOT... -1,4
-8x + y = 6
4x + 7y = -19
Tags
CCSS.HSA.REI.C.9
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When solving this system by "elimination" what would be the best step to start with?
9x - 7y = 27
3x - 7y = 9
add the 2 equations together to eliminate the "y"s
add the 2 equations together to eliminate the "x"s
multiply one of the equations by (-1) then add the equations to eliminate the "x"s
multiply one of the equations by (-1) then add the equations to eliminate the "y"s
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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