11.E: Graphs (Exercises) (2024)

Table of Contents
11.1 - Use the Rectangular Coordinate System Plot Points in a Rectangular Coordinate System Identify Points on a Graph Verify Solutions to an Equation in Two Variables Complete a Table of Solutions to a Linear Equation in Two Variables Find Solutions to a Linear Equation in Two Variables 11.2 - Graphing Linear Equations Recognize the Relation Between the Solutions of an Equation and its Graph Graph a Linear Equation by Plotting Points Graph Vertical and Horizontal lines 11.3 - Graphing with Intercepts Identify the Intercepts on a Graph Find the Intercepts from an Equation of a Line Graph a Line Using the Intercepts Choose the Most Convenient Method to Graph a Line 11.4 - Understand Slope of a Line Use Geoboards to Model Slope Find the Slope of a Line from its Graph Find the Slope of Horizontal and Vertical Lines Use the Slope Formula to find the Slope of a Line between Two Points Graph a Line Given a Point and the Slope Solve Slope Applications PRACTICE TEST Contributors and Attributions References
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    11.1 - Use the Rectangular Coordinate System

    Plot Points in a Rectangular Coordinate System

    In the following exercises, plot each point in a rectangular coordinate system.

    1. (1, 3), (3, 1)
    2. (2, 5), (5, 2)

    In the following exercises, plot each point in a rectangular coordinate system and identify the quadrant in which the point is located.

    1. (a) (−1, −5) (b) (−3, 4) (c) (2, −3) (d) \(\left(1, \dfrac{5}{2}\right)\)
    2. (a) (3, −2) (b) (−4, −1) (c) (−5, 4) (d) \(\left(2, \dfrac{10}{3}\right)\)

    Identify Points on a Graph

    In the following exercises, name the ordered pair of each point shown in the rectangular coordinate system.

    1. 11.E: Graphs (Exercises) (1)
    2. 11.E: Graphs (Exercises) (2)
    3. 11.E: Graphs (Exercises) (3)
    4. 11.E: Graphs (Exercises) (4)

    Verify Solutions to an Equation in Two Variables

    In the following exercises, find the ordered pairs that are solutions to the given equation.

    1. 5x + y = 10
      1. (5, 1)
      2. (2, 0)
      3. (4, −10)
    2. y = 6x − 2
      1. (1, 4)
      2. \(\left(\dfrac{1}{3} , 0\right)\)
      3. (6, −2)

    Complete a Table of Solutions to a Linear Equation in Two Variables

    In the following exercises, complete the table to find solutions to each linear equation.

    1. y = 4x − 1
    x y (x, y)
    0
    1
    -2
    1. y = \(− \dfrac{1}{2}\)x + 3
    x y (x, y)
    0
    1
    -2
    1. x + 2y = 5
    x y (x, y)
    0
    1
    -1
    1. 3x − 2y = 6
    x y (x, y)
    0
    0
    -2

    Find Solutions to a Linear Equation in Two Variables

    In the following exercises, find three solutions to each linear equation.

    1. x + y = 3
    2. x + y = −4
    3. y = 3x + 1
    4. y = − x − 1

    11.2 - Graphing Linear Equations

    Recognize the Relation Between the Solutions of an Equation and its Graph

    In the following exercises, for each ordered pair, decide (a) if the ordered pair is a solution to the equation. (b) if the point is on the line.

    1. y = − x + 4
      1. (0, 4)
      2. (−1, 3)
      3. (2, 2)
      4. (−2, 6)

    11.E: Graphs (Exercises) (5)

    1. y = \(\dfrac{2}{3}\)x − 1
      1. (0, −1)
      2. (3, 1)
      3. (−3, −3)
      4. (6, 4)

    11.E: Graphs (Exercises) (6)

    Graph a Linear Equation by Plotting Points

    In the following exercises, graph by plotting points.

    1. y = 4x − 3
    2. y = −3x
    3. 2x + y = 7

    Graph Vertical and Horizontal lines

    In the following exercises, graph the vertical or horizontal lines.

    1. y = −2
    2. x = 3

    11.3 - Graphing with Intercepts

    Identify the Intercepts on a Graph

    In the following exercises, find the x- and y-intercepts.

    1. 11.E: Graphs (Exercises) (7)
    2. 11.E: Graphs (Exercises) (8)

    Find the Intercepts from an Equation of a Line

    In the following exercises, find the intercepts.

    1. x + y = 5
    2. x − y = −1
    3. y = \(\dfrac{3}{4}\)x − 12
    4. y = 3x

    Graph a Line Using the Intercepts

    In the following exercises, graph using the intercepts.

    1. −x + 3y = 3
    2. x + y = −2

    Choose the Most Convenient Method to Graph a Line

    In the following exercises, identify the most convenient method to graph each line.

    1. x = 5
    2. y = −3
    3. 2x + y = 5
    4. x − y = 2
    5. y = \(\dfrac{1}{2}\)x + 2
    6. y = \(\dfrac{3}{4}\)x − 1

    11.4 - Understand Slope of a Line

    Use Geoboards to Model Slope

    In the following exercises, find the slope modeled on each geoboard.

    1. 11.E: Graphs (Exercises) (9)
    2. 11.E: Graphs (Exercises) (10)
    3. 11.E: Graphs (Exercises) (11)
    4. 11.E: Graphs (Exercises) (12)

    In the following exercises, model each slope. Draw a picture to show your results.

    1. \(\dfrac{1}{3}\)
    2. \(\dfrac{3}{2}\)
    3. \(− \dfrac{2}{3}\)
    4. \(− \dfrac{1}{2}\)

    Find the Slope of a Line from its Graph

    In the following exercises, find the slope of each line shown.

    1. 11.E: Graphs (Exercises) (13)
    2. 11.E: Graphs (Exercises) (14)
    3. 11.E: Graphs (Exercises) (15)
    4. 11.E: Graphs (Exercises) (16)

    Find the Slope of Horizontal and Vertical Lines

    In the following exercises, find the slope of each line.

    1. y = 2
    2. x = 5
    3. x = −3
    4. y = −1

    Use the Slope Formula to find the Slope of a Line between Two Points

    In the following exercises, use the slope formula to find the slope of the line between each pair of points.

    1. (2, 1), (4, 5)
    2. (−1, −1), (0, −5)
    3. (3, 5), (4, −1)
    4. (−5, −2), (3, 2)

    Graph a Line Given a Point and the Slope

    In the following exercises, graph the line given a point and the slope.

    1. (2, −2); m = \(\dfrac{5}{2}\)
    2. (−3, 4); m = \(− \dfrac{1}{3}\)

    Solve Slope Applications

    In the following exercise, solve the slope application.

    1. A roof has rise 10 feet and run 15 feet. What is its slope?

    PRACTICE TEST

    1. Plot and label these points:
      1. (2, 5)
      2. (−1, −3)
      3. (−4, 0)
      4. (3, −5)
      5. (−2, 1)
    2. Name the ordered pair for each point shown.

    11.E: Graphs (Exercises) (17)

    1. Find the x-intercept and y-intercept on the line shown.

    11.E: Graphs (Exercises) (18)

    1. Find the x-intercept and y-intercept of the equation 3x − y = 6.
    2. Is (1, 3) a solution to the equation x + 4y = 12? How do you know?
    3. Complete the table to find four solutions to the equation y = − x + 1.
    x y (x, y)
    0
    1
    3
    -2
    1. Complete the table to find three solutions to the equation 4x + y = 8.
    x y (x, y)
    0
    0
    3

      In the following exercises, find three solutions to each equation and then graph each line.

      1. y = −3x
      2. 2x + 3y = −6

      In the following exercises, find the slope of each line.

      1. 11.E: Graphs (Exercises) (19)
      2. 11.E: Graphs (Exercises) (20)
      3. Use the slope formula to find the slope of the line between (0, −4) and (5, 2).
      4. Find the slope of the line y = 2.
      5. Graph the line passing through (1, 1) with slope m = \(\dfrac{3}{2}\).
      6. A bicycle route climbs 20 feet for 1,000 feet of horizontal distance. What is the slope of the route?

      Contributors and Attributions

      11.E: Graphs (Exercises) (2024)

      References

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