Math Problem Statement

Graph the equation. Let x equals negative 3 comma negative 2 comma negative 1 comma ​0, 1,​ 2, and 3. y equals negative 4

Solution

To graph the equation y=4y = -4 for the given values of xx (3,2,1,0,1,2,3)(-3, -2, -1, 0, 1, 2, 3), follow these steps:

  1. Recognize that y=4y = -4 is a horizontal line where the yy-value is always -4, regardless of the xx-value.

  2. Plot the points for the given xx-values with y=4y = -4:

    • For x=3x = -3, y=4y = -4
    • For x=2x = -2, y=4y = -4
    • For x=1x = -1, y=4y = -4
    • For x=0x = 0, y=4y = -4
    • For x=1x = 1, y=4y = -4
    • For x=2x = 2, y=4y = -4
    • For x=3x = 3, y=4y = -4
  3. Draw a horizontal line passing through all these points on the coordinate plane.

Here is the graph:

x & -3 & -2 & -1 & 0 & 1 & 2 & 3 \\ y & -4 & -4 & -4 & -4 & -4 & -4 & -4 \\ \end{array}$$ Now let's visualize this on a coordinate plane: \[ \begin{tikzpicture} \begin{axis}[ axis lines = middle, xlabel = $$x$$, ylabel = $$y$$, ymin = -5, ymax = -3, xmin = -4, xmax = 4, xtick={-3, -2, -1, 0, 1, 2, 3}, ytick={-4}, grid = major, width=10cm, height=6cm ] \addplot[ color=blue, mark=*, only marks, domain=-3:3 ] {-4}; \addplot[ color=blue, samples=100, domain=-3:3 ] {-4}; \end{axis} \end{tikzpicture} \] ### Would you like more details or have any questions? ### Further Exploration Questions: 1. How would the graph look if the equation were $$y = 4$$ instead? 2. What is the slope of the line $$y = -4$$? 3. How can we express the horizontal line equation in slope-intercept form? 4. What is the y-intercept of the line $$y = -4$$? 5. How does the line $$y = -4$$ compare to the line $$x = -4$$? 6. If you shift the line $$y = -4$$ up by 5 units, what will the new equation be? 7. What will be the coordinates of the points if $$x$$ ranges from -5 to 5 for the equation $$y = -4$$? 8. How would the graph change if the equation were $$y = -4 + x$$? ### Tip: When graphing horizontal lines, remember that the y-value remains constant across all x-values.

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Math Problem Analysis

Mathematical Concepts

Graphing
Horizontal Lines
Coordinate Plane

Formulas

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Theorems

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Suitable Grade Level

Grades 6-8