h-Chapter 6 Practice Test (25)

Solve the following system of equations using elimination:

4x + 9y = 28

-4x - y = -28

• (-7, 0)

• (6, 0)

• (-6, 0)

• (7, 0)

Solve the following system of equations using elimination:

-9x - 4y = -20

5x + 4y = 4

• (-4, 4)

• (4, 4)

• (4, -4)

• (-4, -4)

Solve the following system of equations using elimination:

4x + 4y = 4

3x + 4y = 10

• (7, -6)

• (-6, 7)

• (6, 7)

• (7, 6)

Solve the following system of equations using elimination:

7x - 9y = 29

7x + 2y = -15

• (-4, -1)

• (-1. -4)

• (-1, 4)

• (-1, 6)

Solve the following system of equations using elimination:

2x + 9y = -7

6x - 3y = 9

• (-1, -1)

• (2, -1)

• (1, 1)

• (1, -1)

Solve the following system of equations using substitution:

8x + 4y = 12

y = -2x + 3

• (0,3)

• (3,0)

• No solution(parallel lines)

• Infinitely many solutions

Solve the following system of equations using elimination:

2x + 3y = 6

x + 2y = 5

• (4 , -3)

• (-3 , 4)

• (3 , 4)

• (4 , 3)

Solve the following system of equations using substitution:

y = -x - 4

y = x - 2

• (-1, -3)

• (4, -3)

• Infinitely many solutions

• (1, 3)

Solve the following system of equations using substitution:

-2x + 2y = 9

y = 2x + 6

• $\left(-\frac{2}{3},-3\right)$

• $\left(-\frac{3}{2},3\right)$

• $\left(\frac{1}{2},3\right)$

• $\left(-\frac{3}{2},-3\right)$

Solve the following system of equations using substitution:

-4x + 9y = 9

x = 3y - 6

• (5, 9)

• (-9, -5)

• x = 9

• (9, 5)