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Model Systems of Equations

Authored by Anthony Clark

Mathematics

9th Grade

CCSS covered

Model Systems of Equations
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14 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Mathematical representations used to describe quantities and their relationships in a real-life situation

Solutions to a System of Equations

Constraint

Model

Elimination

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A way to solve a system of equations in which we eliminate one variable so that we can solve for the other. This is done by adding or subtracting equations in the system.

Standard Form

Elimination

Slope-Intercept Form

Solutions to a System of Equations

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

________________ is a set of two or more equations that have the same variables.

solution of a system

elimination method

system of equations

table

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

(-1, -2)
(-1, 2)
(1, 2)
(1, -2)

Tags

CCSS.8.EE.C.8A

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the solution?

(1, -1)

(-1, 1)

(0, -2)

(0, 1)

Tags

CCSS.8.EE.C.8B

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If a system of linear equations has one solution, what does this mean about the two lines? 

Parallel lines

the same line 

Intersecting lines

Tags

CCSS.8.EE.C.8A

7.

MULTIPLE CHOICE QUESTION

1 min • 12 pts

Some students want to order shirts with their school logo. One company charges $9.65 per shirt plus a setup fee of $43. Another company charges $8.40 per shirt plus a $58 fee. Which equation represents the number of shirts when both companies charge the same amount?

y = 9.65 + x
y = 8.40 + x

y = 9.65x + 43
y = 8.40x + 58

y =9.65x
y = 8.40x

y = 9.65x - 43
y = 8.40x - 58

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