Review of Systems for Unit 4

Jesse and Gale went to the craft store to buy materials. Jesse bought 12 yards of fabric and 5 zippers for a total of $33.00. Gale bought 10 yards of fabric and 3 zippers for a total of $24.00.

Which of the following systems of equations could be used to determine the cost of one yard of fabric, f, and one

zipper, z?

• 12f+5z=33

  10f+3z=24

• 12f+5z=24

  10f+3z=33

• 12f+10z=33

  5f+3z=24

• 15f+8z=57

  f+z=30

Jesse and Gale went to the craft store to buy materials. Jesse bought 12 yards of fabric and 5 zippers for a total of $33.00. Gale bought 10 yards of fabric and 3 zippers for a total of $24.00.

What is the price of one zipper?

Mathematical Equivalence

ON

The tables of ordered pairs represent some points on the graphs of f and g. Which system of equations represents the lines of f and g?

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• 
• 
• 

The tables describe a system of two linear equations.

Which of the following is represented by these tables?

• y = -6x + 15

  y = -3x - 9

• y = 15x - 6

  y = -9x - 3

• y = 6x - 15

  y = 3x + 9

The tables describe a system of two linear equations.

Which of the following is represented by these tables?

• x - 6y = -90

  x - 3y = 27

• x + 6y = 90

  x +3y = -27

• 6x - y = -15

  3x - y = 9

• 6x + y = 15

  3x + y = -9

What is the formula for the perimeter of a rectangle? Select TWO correct answer choices.

• A = l x w

• P = l + l + w + w

• P = 2l + 2w

• P = l x w

Avery has a rectangular garden with length, l, width, w, and a perimeter of 24 feet. The length of the

rectangle is 3 less than 4 times the width. Choose the system of equations that can be solved to find l and w.

• l + w = 24

  l = 4w - 3

• 2l + 2w = 24

  l = 4w - 3

• l + w = 24

  w = 4l + 3

• w = 3w

  l = w - 4

Avery has a rectangular garden with length, l, width, w, and a perimeter of 24 feet. The length of the

rectangle is 3 less than 4 times the width. What is the length of Avery's garden?

• 3 feet

• -9 feet

• 6 feet

• 9 feet

A system of linear equations is graphed. Which TWO equations are represented by the graph?

A system of equations is graphed. Which systems of equations is represented by the graph?

• x - 2y = -6

  2x - y = 3

• 2x - 2y = -6

  x - y = 3

• -x + 2y = 6

  2x - y = 3

• 6x + 9y = 3

  8x + 7y = -3