Elimination by Multiplying

Elimination by Multiplying

9th Grade

8 Qs

quiz-placeholder

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Elimination by Multiplying

Elimination by Multiplying

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

CCSS
8.EE.C.8B, HSA.REI.C.6

Standards-aligned

Created by

Anthony Clark

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8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Identify which method for solving systems is being described by this fact:


Equations must have like terms "stacked" up vertically, usually written in standard form.

Graphing

Substitution

Elimination (adding or multiplying)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Identify which method for solving systems is being described by this fact: If like terms have a matching coefficient but not opposite values, take the opposite of every term in one equation.

Graphing

Substitution

Elimination (adding or multiplying)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Identify which method for solving systems is being described by this fact: If like terms do not have a matching coefficient, multiplying one or both of the equations by a certain factor to transform the equations into a set of like terms with a matching set of coefficients.

Graphing

Substitution

Elimination (adding or multiplying)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

We could eliminate the y-variable in this system by multiplying the bottom equation by ______.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

5.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

what would the top equation become when you multiply everything by -1?

2x - 6y = 20

-2x - 6y = -20

-2x + 6y = 20

-2x + 6y = -20

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

6.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

what is the resulting combined equation for the system below?

-18x = 18

y = 18

2y= 18

18x + 2y = 18

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve the system by multiplication.
2x + 10y = -20
-x + 4y = 28

(-20,2)

(1,4)

(2,-20)

(-2,2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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