Coordinate Solutions
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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11 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by matrices.
4x+9y=28
-4x-y=-28
(-7,0)
(6,0)
(-6,0)
(7,0)
Tags
CCSS.HSA.REI.C.9
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by matrices.
7x+y=-9
-3x-y=5
No solution
(1,8)
(-2,-3)
(-1,-2)
Tags
CCSS.HSA.REI.C.9
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the first step in solving a system of equations by elimination/matrices?
Get both equations in standard form and line up the like terms.
Get both equations in slope-intercept form.
Get both equations equal to zero.
Put the x terms first.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The solution (x, y) to a system of equations is the point where they...?
Run off the graph
Don't touch
Intersect
Exist
Tags
CCSS.8.EE.C.8B
5.
MULTIPLE CHOICE QUESTION
1 min • 12 pts
Solve for x and y.
y = 2/3x - 2
y = -x + 3
(0,3)
(0,-3)
(3,0)
(-3,0)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
1 min • 12 pts
Solve for x and y
3x + 2y = 16
7x + y = 19
(-2,5)
(-2,-5)
(2,-5)
(2,5)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the value of the y-coordinate of the solution to the system of equations
x-2y=1
x+4y=7
1
-1
3
4
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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