Solving Systems Algebraically
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
-2x-9y=-25
-4x-9y=-23
(-1,3)
(3,-1)
(8,-1)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the solution to this system?
2x + 3y = 4
y= 5x - 27
(5,-2)
(5, 2)
(2,3)
(3,2)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which answer has a correct first step for this system:
The variable is already isolated, so we've already solved the system.
The variable is already isolated for y, so we substitute it in the first equation and solve for x
3x + 3(3x + 5) = 3
Free sha vaca doo
The variable is already isolated for y, so we substitute it in the second equation and solve for x
y = 3(3x + 3y) = 3
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve for x and y
5x + 3y = 7
y = 4
(4,1)
(4,-1)
(1,4)
(-1,4)
Tags
CCSS.HSA.REI.C.9
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve:
y = 2x -11
-3y = -6x -15
(-1.5,-4)
(1.5,4)
No solution (parallel lines)
Infinitely many solutions
Tags
CCSS.8.EE.C.8B
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
x-y=11
2x+y=19
(10,-1)
(-1,10)
(3,-4)
(6,7)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the system of Equation (x,y)
x + 4y = –3
x + 7y = –12
(-3,9)
(9,-3)
(3,9)
(9,3)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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