KSA Week 2: Systems of Equations

Which values of x and y make the system of equations below true.

2x - y = -1

3x - y = -3

• x = -4, y = -7

• x = -2, y = -3

• x = 2, y = 5

• x = 4, y = 15

Which of the following has the same solution as this system of equations:

4x + 9y = 10

2x + 3y = 12

• 4x + 9y = 10

  4x + 3y = 24

• 4x + 9y = 10

  4x + 6y = 24

• 4x + 9y = 10

  2x + 9y = 36

• 4x + 9y = 10

  2x + 9y = 12

• (-8, -4)

• (-4, 2)

• (0, 0)

• (4, -2)

• (8, -4)

Consider this system of linear equations:

x + 2y = 8

-2x + y = -6

What is the solution of the system of equations.

• (4, 4)

• (6, 1)

• (1, 6)

The height of a flagpole, rounded to the nearest foot, is 42 feet. Which interval shows the possible values of h, the actual height in feet of the flagpole?

• 2p + 4e = 11

  p + 3e = 7

• 2p + 4e = 7

  p + 3e = 11

• 4p + 2e = 11

  3p + e = 7

• 4p + 2e = 7

  3p + e = 11

• 2x + 4y = 130

  x + 3y = 80

• 3x + y = 130

  4x + 2y = 80

• 4x + 3y = 130

  2x + y = 80

• 4x + 2y = 130

  3x + y = 80

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