Christine Davis - IU8
Quiz by , created more than 1 year ago

Algebra (Systems of Linear Equations) Quiz on Substitution, created by Christine Davis - IU8 on 29/07/2017.

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Christine Davis - IU8
Created by Christine Davis - IU8 over 7 years ago
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Substitution

Substitution

Question 1 of 6

1

The system of equations y = -3x + 5 and y = -3x - 7 has

Select one of the following:

  • Exactly one solution

  • No solution

  • Infinitely many solutions

  • Exactly two solutions

Explanation

Question 2 of 6

2

To solve the system of equations 5x + 3y = 9 and 4x + y = 8, which expression could be substituted for y into the first equation?

Select one of the following:

  • 12x - 3y

  • 4x - 8

  • -3/5x + 3

  • 8 - 4x

Explanation

Question 3 of 6

2

Solve the system of equations 5x + 2y = 1 and y = 1 - 3x

Select one of the following:

  • (1, -2)

  • (1, 2)

  • (0, 1/2)

  • (-2, 1)

Explanation

Question 4 of 6

2

To furnish a cafeteria, a school can spend $5200 on tables and chairs. Tables cost $200 and chairs cost $40. Each table will have 8 chairs around it. How many tables and chairs will the school purchase?

Select one of the following:

  • 20 tables and 160 chairs

  • 10 tables and 80 chairs

  • 5 tables and 40 chairs

  • 30 tables and 240 chairs

Explanation

Question 5 of 6

2

Solve the system of equations x + 3y = 12 and 5x + y = 4

Select one of the following:

  • (4, 0)

  • (0, 4)

  • (0, -4)

  • (-4, 0)

Explanation

Question 6 of 6

1

The system of equations y = 2x - 3 and y = 4x - 3 has

Select one of the following:

  • Exactly two solutions

  • No solution

  • Infinitely many solutions

  • Exactly one solution

Explanation

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