Solve Linear Systems by Multiplying

Solve Linear Systems by Multiplying

8th Grade

20 Qs

quiz-placeholder

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Solve Linear Systems by Multiplying

Solve Linear Systems by Multiplying

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Hard

CCSS
8.EE.C.8B, HSA.CED.A.3, HSA.REI.C.6

Standards-aligned

Created by

Anthony Clark

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20 questions

Show all answers

1.

DRAG AND DROP QUESTION

1 min • 1 pt

For the following equations, it would be easier to change the ​ (a)   variable into opposites by multiplying by ​ (b)   ​ .

2x + 3y = 12

4x - 7y = - 54

x

-2

y

2

7

3

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: 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

3.

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

4.

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

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve the system by multiplication.
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

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Look at this system of equations:      4x -  y = -10   x + 3y =   -8 Which of the following statements describes the most logical first step in solving this system?

Multiply the top equation by -4

Multiply the bottom equation by -4

Multiply the top equation by -1

Multiply the bottom equation by -1

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

7.

MULTIPLE CHOICE QUESTION

1 min • 4 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

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