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Pre-Unit 3 Assessment

Authored by Talitha Yawn

Mathematics

9th Grade

CCSS covered

Pre-Unit 3 Assessment
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12 questions

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1.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Determine whether the system of equations is independent, dependent, or inconsistent:

x + 2y = 4

3x + 6y = 12

Independent

Dependent

Inconsistent

Tags

CCSS.8.EE.C.8B

2.

DRAW QUESTION

10 mins • 1 pt

Media Image

3.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Which system(s) of equations has infinitely many solutions? Select all that apply.

4x + 6y = 2, 12x + 19y = 6

4x + 6y = 1, 8x + 12y = 1

2x + 3y = 2, 6x + 9y = 6

2x + 3y = 4, 4x + 3y = 2

Tags

CCSS.8.EE.C.8B

4.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Which system(s) of equations has no solutions? Select all that apply.

3x − 2y = 2, −6x + 4y = 4

2x − 2y = 4, x + 2y = 2

2x − 2y = −2, x + 2y = 2

3x − 2y = 2, −6x + 4y = −2

Tags

CCSS.8.EE.C.8B

5.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

A school has $100 to spend on rewards. The first reward costs $2 and the second costs $3. What are the vertices of the feasible region for this scenario if the quantity of the first award is represented by the variable x and the quantity of the second award by y? Select all that apply.

Hint: Use Desmos after determining the inequalities that would represent the restraints for this situation.

6.

DRAW QUESTION

5 mins • 1 pt

Media Image

7.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Media Image

What is the solution to the system of equations in the picture? Use substitution.

x = 1, y = -2, z = 5
x = 0, y = 0, z = 0
x = -1, y = 2, z = 15
x = -2, y = 1, z = 10

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