Quiz about System of Equations--Substitution

Question 1

Solve: (Show work on your answer document.)

y=8x+1

y=6x+3

Accepted Answer

(1, 9)

Answer

(4, 14)

Answer

(0, 1)

Answer

(2, 4)

Question 2

Solve: (Show work on your answer document.)

y = 8x + 2

y = -x - 7

Accepted Answer

(-1, -6)

Answer

(1, 10)

Answer

(2, 7)

Answer

(9, 9)

Question 3

Solve: (Show work on your answer document.)

y= 4x + 9

y = 5x + 10

Accepted Answer

(-1, 5)

Answer

(9, 19)

Answer

(-1, -1)

Answer

(9, 1)

Question 4

Solve: (Show work on your answer document.)

y = 7x + 9

2y + 2x = -14

Accepted Answer

(-2, -5)

Answer

(5, 0)

Answer

(9, 18)

Answer

(1, 16)

Question 5

Solve: (Show work on your answer document.)

6x + 2y = -20

y = -2x - 4

Accepted Answer

(-6, 8)

Answer

(-5, -14)

Answer

(1, 6)

Answer

(2, -8)

Question 6

Solve: (Show work on your answer document.)

x = -3y - 17

2x + 3y = -7

Accepted Answer

(10 , -9)

Answer

(1, -20)

Answer

(3, 0)

Answer

(-5, -2)

Question 7

Solve: (Show work on your answer document.)

y = 7x + 9

2y + 2x = - 30

Accepted Answer

(-3, -12)

Answer

(5, 0)

Answer

(9, 18)

Answer

(1, 16)

Question 8

Solve: (Show work on your answer document.)

x = -3y - 17

2x + 3y = -7

Accepted Answer

(10 , -9)

Answer

(1, -20)

Answer

(3, 0)

Answer

(-5, -2)

Question 9

What is the solution to this system?

(Show work on your answer document.)

2x + 3y = 4

y= 5x - 27

Accepted Answer

(5,-2)

Answer

(5, 2)

Answer

(2,3)

Answer

(3,2)

Question 10

ACT: Solve the system of equations.

(Show work on your answer document.)

x + 2y = -3

x - y = -12

What is the product of x and y?

Accepted Answer

-27

Answer

-35

Answer

45

Answer

54

Question 11

ACT: Solve using substitution.

(Show work on your answer document.)

2x - 2y = 2

y = -5x + 14

What is the sum of x and y?

Accepted Answer

4

Answer

9

Answer

6.5

Answer

3.25

Question 12

If a system of equations has no solution, what does the graph look like?

Accepted Answer

parallel lines

Answer

intersecting lines

Answer

skew lines

Answer

intersecting lines

Question 13

Solve: (Show work on your answer document.)

x - 3y = -13

4x + 2y = 4

Accepted Answer

(-1, 4)

Answer

(1, 4)

Answer

(-1, -4)

Answer

(1, -4)

Question 14

Solve: (Show work on your answer document.)

x - 3y = -13

4x + 2y = 4

Accepted Answer

(-1, 4)

Answer

(1, 4)

Answer

(-1, -4)

Answer

(1, -4)

Question 15

Solve for x and y. (Show work on your answer document.)

3x + 2y = 16

7x + y = 19

Accepted Answer

(2,5)

Answer

(-2,5)

Answer

(-2,-5)

Answer

(2,-5)

Question 16

Solve: (Show work on your answer document.)

y = 2x - 10

10x - 5y = 15

Accepted Answer

No solution

Answer

(7 , -15)

Answer

(1, -5)

Answer

All real numbers

Question 17

Solve:
y = -1x - 5
4x - 8y = 4

Accepted Answer

(-3, -2)

Answer

(5, -7)

Answer

(3, 9)

Answer

(-5, 4)

Question 18

Solve: (Show work on your answer document.)

y = 2x - 2

-x + 8y = 14

Accepted Answer

(2, 2)

Answer

(6, 12)

Answer

(1, 0)

Answer

(1, -6)

Question 19

Solve: (Show work on your answer document.)

x = -3y - 17

2x + 3y = -7

Accepted Answer

(10 , -9)

Answer

(1, -20)

Answer

(3, 0)

Answer

(-5, -2)

Question 20

Solve: (Show work on your answer document.)

3x + 2y = 16

7x + y = 19

Accepted Answer

(2, 5)

Answer

(-2, 5)

Answer

(-2, -5)

Answer

(2, -5)

System of Equations--Substitution

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