Math Problem Statement

Graph the equation y = 1/3 x - 4

Solution

The equation provided in the image is:

y=13x4y = \frac{1}{3}x - 4

This is a linear equation in slope-intercept form, y=mx+by = mx + b, where mm is the slope and bb is the y-intercept. Let's break down the components:

  • Slope (m): 13\frac{1}{3}. This means for every 3 units you move horizontally to the right, the line will rise by 1 unit.
  • Y-intercept (b): 4-4. This indicates that the line crosses the y-axis at the point (0, -4).

To graph this equation:

  1. Start by plotting the y-intercept at (0, -4).
  2. Use the slope 13\frac{1}{3} to find the next point. From (0, -4), move 3 units to the right (along the x-axis) and 1 unit up (along the y-axis), landing at (3, -3).
  3. Plot that point, and then draw a line through the two points.

Would you like to see more detailed steps for graphing or any clarifications?

Here are five questions related to this topic for further practice:

  1. How would you graph a line with a slope of 25-\frac{2}{5} and a y-intercept of 2?
  2. What happens to the graph of a line if the slope is zero?
  3. How would you identify the slope and y-intercept from the equation y=2x+1y = -2x + 1?
  4. How do you determine if two lines are parallel by looking at their equations?
  5. What changes occur in the graph if the equation becomes y=13x+2y = \frac{1}{3}x + 2 instead?

Tip: Always plot at least two points when graphing a line, and use the slope to find additional points to ensure accuracy!

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Graphing
Slope-Intercept Form

Formulas

Slope-intercept form: y = mx + b

Theorems

Slope and y-intercept determine the graph of a line

Suitable Grade Level

Grades 8-10