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11.1 Use the Rectangular Coordinate System

Plotting and reading ordered pairs across the four quadrants, and checking or generating pairs that satisfy an equation in two variables using a table.

Prealgebra 2e, 11.1 Use the Rectangular Coordinate System

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28 exercises

11.1 Exercise 1

Before you get started, take this readiness quiz.

Evaluate: x+3x + 3 when x=−1.x = −1 .
If you missed this problem, review the reference.

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11.1 Exercise 2

Evaluate: 2x−5y2 x - 5 y when x=3,y=−2.x = 3 , y = −2 .
If you missed this problem, review the reference.

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11.1 Exercise 3

Solve for y:40−4y=20.y : 40 - 4 y = 20 .
If you missed this problem, review the reference.

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11.1 Exercise 4

Use the map in the figure.

  1. ⓐ Find the grid section of the Residence Halls.
  2. ⓑ What is located in grid section 4C?
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11.1 Exercise 5

Use the map in the figure.

  1. ⓐ Find the grid section of Taylor Hall.
  2. ⓑ What is located in section 3B?
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11.1 Exercise 6

Use the map in the figure.

  1. ⓐ Find the grid section of the Parking Garage.
  2. ⓑ What is located in section 2C?
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11.1 Exercise 26

Determine which ordered pairs are solutions to the given equation: 2x+3y=62 x + 3 y = 6

  1. ⓐ (3,0)\left(3 , 0\right)
  2. ⓑ (2,0)\left(2 , 0\right)
  3. ⓒ (6,−2)\left(6 , −2\right)

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11.1 Exercise 27

Determine which ordered pairs are solutions to the given equation: 4x−y=84 x - y = 8

  1. ⓐ (0,8)\left(0 , 8\right)
  2. ⓑ (2,0)\left(2 , 0\right)
  3. ⓒ (1,−4)\left(1 , −4\right)

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11.1 Exercise 29

Determine which ordered pairs are solutions of the given equation: y=4x−3y = 4 x - 3

  1. ⓐ (0,3)\left(0 , 3\right)
  2. ⓑ (1,1)\left(1 , 1\right)
  3. ⓒ (1,0)\left(1 , 0\right)

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11.1 Exercise 30

Determine which ordered pairs are solutions of the given equation: y=−2x+6y = −2 x + 6

  1. ⓐ (0,6)\left(0 , 6\right)
  2. ⓑ (1,4)\left(1 , 4\right)
  3. ⓒ (−2,−2)\left(−2 , −2\right)

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11.1 Exercise 32

Complete the table to find three solutions to the equation: y=3x−1.y = 3 x - 1 .

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11.1 Exercise 33

Complete the table to find three solutions to the equation: y=6x+1y = 6 x + 1

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11.1 Exercise 35

Complete the table to find three solutions to the equation: 2x−5y=20.2 x - 5 y = 20 .

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11.1 Exercise 36

Complete the table to find three solutions to the equation: 3x−4y=12.3 x - 4 y = 12 .

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11.1 Exercise 38

Find a solution to the equation: 4x+3y=12.4 x + 3 y = 12 .

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11.1 Exercise 39

Find a solution to the equation: 2x+4y=8.2 x + 4 y = 8 .

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11.1 Exercise 41

Find three solutions to the equation: 2x+3y=6.2 x + 3 y = 6 .

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11.1 Exercise 42

Find three solutions to the equation: 4x+2y=8.4 x + 2 y = 8 .

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11.1 Exercise 44

Find three solutions to the equation: 4x+y=8.4 x + y = 8 .

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11.1 Exercise 45

Find three solutions to the equation: x+5y=10.x + 5 y = 10 .

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11.1 Exercise 66

Determine which ordered pairs are solutions to the given equation.

2x+y=62 x + y = 6

  1. ⓐ (1,4)\left(1 , 4\right)
  2. ⓑ (3,0)\left(3 , 0\right)
  3. ⓒ (2,3)\left(2 , 3\right)

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11.1 Exercise 68

Determine which ordered pairs are solutions to the given equation.

4x−2y=84 x - 2 y = 8

  1. ⓐ (3,2)\left(3 , 2\right)
  2. ⓑ (1,4)\left(1 , 4\right)
  3. ⓒ (0,−4)\left(0 , −4\right)

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11.1 Exercise 70

Determine which ordered pairs are solutions to the given equation.

y=4x+3y = 4 x + 3

  1. ⓐ (4,3)\left(4 , 3\right)
  2. ⓑ (−1,−1)\left(−1 , −1\right)
  3. ⓒ (12,5)\left(\frac{1}{2} , 5\right)

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11.1 Exercise 72

Determine which ordered pairs are solutions to the given equation.

y=12x−1y = \frac{1}{2} x - 1

  1. ⓐ (2,0)\left(2 , 0\right)
  2. ⓑ (−6,−4)\left(−6 , −4\right)
  3. ⓒ (−4,−1)\left(−4 , −1\right)

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11.1 Exercise 74

Complete the table to find solutions to each linear equation.

y=2x−4y = 2 x - 4

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11.1 Exercise 76

Complete the table to find solutions to each linear equation.

y=−x+5y = - x + 5

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11.1 Exercise 78

Complete the table to find solutions to each linear equation.

y=−32x−2y = - \frac{3}{2} x - 2

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11.1 Exercise 82

Have you ever used a map with a rectangular coordinate system? Describe the map and how you used it.

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Adapted from Prealgebra 2e © 2020 Rice University. Licensed under CC BY 4.0. Source: Prealgebra 2e. Imported at revision 77a933c.