Solving Systems Using Matrices

Solving Systems Using Matrices

8th - 9th Grade

10 Qs

quiz-placeholder

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Solving Systems Using Matrices

Solving Systems Using Matrices

Assessment

Quiz

Mathematics

8th - 9th Grade

Practice Problem

Hard

CCSS
8.EE.C.8B, HSA.REI.C.9, HSA.REI.C.6

Standards-aligned

Created by

Barbara White

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The solution to a system of equations is any ordered pair that makes both equations true. 

TRUE
FALSE

Tags

CCSS.8.EE.C.8B

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve the system given:
3x - y = 7
2x + y = 3

(-1,2)
(5,4)
(4,5)
(2,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Solve the system:

x+ 3y = 9

2x+ y = −2

(3,2)

(-2, 2)

(3, -4)

(-3, 4)

(0.5, -3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

4.

MULTIPLE CHOICE QUESTION

5 mins • 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

5.

MULTIPLE CHOICE QUESTION

5 mins • 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

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

3x + y = –14

–2x – y = 9

Which method would be best for solving this system?

Substitution

Elimination/Matrices

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is the best method to use?


y = 6x − 11

−2x − 3y = −7

Graphing

Substitution because a variable is isolated.

Elimination because both equations are in standard form.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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