Math Problem Statement

Graph the linear equation: y = (4/3)x - 4

Solution

The equation given is:

y=43x4y = \frac{4}{3}x - 4

This is a linear equation in slope-intercept form, y=mx+by = mx + b, where:

  • m=43m = \frac{4}{3} is the slope.
  • b=4b = -4 is the y-intercept, which means the line crosses the y-axis at y=4y = -4.

To plot this line on the provided graph:

  1. Start at the y-intercept: Locate (0,4)(0, -4) on the graph (on the y-axis).

  2. Use the slope to find another point: The slope 43\frac{4}{3} means you go up 4 units and right 3 units from the y-intercept. From (0,4)(0, -4), move up to y=0y = 0 and over to x=3x = 3. This gives the point (3,0)(3, 0).

  3. Draw the line: Connect the points (0,4)(0, -4) and (3,0)(3, 0) with a straight line. Continue the line in both directions.

If you want more details or help with the graph, let me know!

Here are some additional questions you might find useful:

  1. How do you interpret the slope in a linear equation?
  2. How do we calculate the x-intercept of the equation?
  3. What happens if the slope is negative?
  4. How does the y-intercept affect the position of the line?
  5. Can we solve for xx if y=0y = 0 in this equation?

Tip: Remember that the slope is the "rise over run," meaning the change in y divided by the change in x.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Graphing

Formulas

Slope-intercept form: y = mx + b

Theorems

Linear graph slope theorem

Suitable Grade Level

Grades 8-10