Quiz #4 - Summer School Math 8

Solve.

-4x-2y=-12

4x+8y=-24

• (5,6)

• (6,-6)

• (6,-2)

• (4,-3)

Solve.

4x+8y=20

-4x+2y=-30

• (-7,1)

• (2,-5)

• (-2,5)

• (7,-1)

Solve.

x-y=11

2x+y=19

• (10,-1)

• (-1,10)

• (3,-4)

• (6,7)

Solve.

-6x+5y=1

6x+4y=-10

• (1,-1)

• (0,-1)

• (1,1)

• (-1,-1)

Solve.

−4x − 4y = 0

4x + 4y = 0

• (−6, −4)

• Infinite number of solutions

• (−6, 10)

• (6, 4)

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

• D: {1, -3, -4,}
  R: {0, 1, 2, -4}
• D:{0, 1, 2, -4}
  R:{1, -3, -4}
• D:{0, 1, 2, 3, 4}
  R:{1, -3, -4}

• {-2, 3, 7}

• [-2, 3]

• {1, 2, 2, 3, 4}

• [1, 4]

• {1, 2, 3, 4, 5}

• {-1, 1, 2, 3}

• {1, 2, 3, 5}

• [1, 5]

• {1, 2, 3, 4, 5}
• {-1, 1, 2, 3}
• {1, 2, 3, 5}
• [1, 5]

What is the range of the table?

• {-4, 0, 1, 3}
• {-2, 0, 2, 3}
• {-4, -2, 0, 1, 2, 3}
• { (0, 0), (2, -4), (3, 3), (-2, 1) }