Substitution Graphing Linear Equations
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the solution to this system of equations? Solve by substitution or graphing.
(7, -8)
(-7, 8)
(-7, -8)
(7, 8)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tags
CCSS.8.EE.C.8A
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the solution to this system? Solve by substitution.
y= 4x + 3
2x - 3y = 21
(3,-9)
(-3,-9)
(-3,9)
(0,1)
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 • 1 pt
Choose the correct equation for the given graph.
y = x + 2
y = 4 + x
y = x - 2
y = 4 - x
Answer explanation
As we can see in the graph that the line is intersecting x axis at 2 and y axis at -2. So here we have got two points (2, 0) and (0, -2). Now let's substitute these points in y = x - 2 (2, 0) In LHS, y = 0 In RHS, x - 2 = 2 - 2 = 0 So, LHS = RHS (0, -2) In LHS, y = -2 In RHS, x - 2 = 0 -2 = -2 So, LHS = RHS Therefore, The graph in the figure is of the equation y = x - 2 and option 3 is the correct answer.
Tags
CCSS.8.F.B.4
CCSS.HSF.LE.A.2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The system's solution occurs at
(1, 4)
(4, 1)
(-4, 1)
No solution
Tags
CCSS.8.EE.C.8B
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
y = -2x + 18
y = 8
(5, 8)
(-5, 8)
(2, 8)
(-2, 8)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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