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A2_2B_Feb13_Quiz

Authored by Elizabeth Borres

Mathematics

11th - 12th Grade

CCSS covered

Used 4+ times

A2_2B_Feb13_Quiz
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Identify a possible first step using the elimination method to solve the system and then find the solution to the system.

3x + 2y = 24

6x + 2y = 30

Multiply second equation by 2, solution (2, 9).

Multiply first equation by -2, solution (2, 9).

Multiply second equation by 2, solution (2, -9).

Multiply first equation by -2, solution (2, -9).

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Solve the system of equations.

a + b = 10

a - b = 2

a = 5, b = 5

a = 2, b = 8

a= 6, b = 4

a = 3, b = 7

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the plan is to add the two equations to solve, what could be the first step to solve this system of equations?

3x - 7y = 10

2x - 5y = 12

Multiply the first equation by 2 and the second equation by 3.

Multiply the first equation by 5 and the second equation by 7.

Multiply the first equation by -2 and the second equation by 3.

Multiply the first equation by -2 and the second equation by -3.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Marybeth is going to solve this problem by multiplying the top equation by -2. If she does this and combines the equations, what does she get?

3x - 5y = 10

6x + 3y = -6

-13y = -26

-7y = 14

-2y = 4

13y = -26

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If you were going to solve this equation by substitution, what would your first step look like?

x = 4y - 2

x - 3y = 6

x - 4y - 2 = 6

4y - 2 - 3y = 6

x - 12y - 6 = 6

x - 12y + 6 = 6

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Identify a possible first step using the elimination method to solve the system and then find the solution to the system.

12x – 3y = 6

2x – y = 2

Multiply second equation by 6, solution (2, 0).

Multiply second equation by 6, solution (-2, 0).

Multiply second equation by -6, solution (0, 2).

Multiply second equation by -6, solution (0, -2)

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If (p, q) is the solution to the system of equations, what is the value of q?

−16p − 2q = 100

p − 4q = 200

0

-10

-25

-50

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