Math Problem Statement

Based on the equation 4x - 12y - 24 = 0, determine the correct graph that shows the x- and y-intercepts.

Solution

To solve the problem and determine the correct graph, we need to analyze the equation of the linear function provided:

The equation is:
4x12y24=04x - 12y - 24 = 0

Step 1: Rewrite in slope-intercept form

Solve for yy: 4x12y=244x - 12y = 24 12y=4x+24-12y = -4x + 24 y=13x2y = \frac{1}{3}x - 2

So the slope is 13\frac{1}{3} and the y-intercept is 2-2.

Step 2: Find the x- and y-intercepts

  • Y-intercept: Set x=0x = 0: y=13(0)2=2y = \frac{1}{3}(0) - 2 = -2 So the y-intercept is (0,2)(0, -2).

  • X-intercept: Set y=0y = 0: 0=13x20 = \frac{1}{3}x - 2 13x=2x=6\frac{1}{3}x = 2 \quad \Rightarrow \quad x = 6 So the x-intercept is (6,0)(6, 0).

Step 3: Match the graph

The correct graph must have the points (0,2)(0, -2) and (6,0)(6, 0). Upon inspection of the options:

  • The first graph shows (0,2)(0, -2) and (6,0)(-6, 0) — incorrect.
  • The second graph shows (0,2)(0, -2) and (6,0)(6, 0)correct.
  • The third graph does not match either intercept.

Answer:

The correct choice is the second graph with intercepts (0,2)(0, -2) and (6,0)(6, 0).

Let me know if you want additional details or have questions! Here are 5 related questions to consider:

  1. What does the slope of a line represent geometrically?
  2. How can you verify graphically if a point lies on a given line?
  3. Why is slope-intercept form useful for graphing?
  4. What steps are involved in converting a standard form equation to slope-intercept form?
  5. How would you graph this equation without calculating intercepts?

Tip: Always confirm the intercepts and slope visually on the graph for accuracy!

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Linear Equations
Slope-Intercept Form
Intercepts
Graphing Linear Functions

Formulas

Standard form of a linear equation: Ax + By + C = 0
Slope-intercept form: y = mx + b

Theorems

Intercept Theorem
Slope Theorem

Suitable Grade Level

Grades 8-10