Math Problem Statement

Point A is one vertex of triangle ABC. Point B is the x-intercept of 6x - 4y = -12 and point C is the y-intercept. What are points B and C? Sketch the triangle in the coordinate plane.

Solution

We are given the following information:

  • Point A is at (0,0)(0, 0).
  • Point B is the x-intercept of the line 6x4y=126x - 4y = -12.
  • Point C is the y-intercept of the same line.

Step 1: Find Point B (the x-intercept)

To find the x-intercept, set y=0y = 0 in the equation of the line 6x4y=126x - 4y = -12:

6x4(0)=126x - 4(0) = -12 6x=126x = -12 x=2x = -2

So, Point B is (2,0)(-2, 0).

Step 2: Find Point C (the y-intercept)

To find the y-intercept, set x=0x = 0 in the same equation:

6(0)4y=126(0) - 4y = -12 4y=12-4y = -12 y=3y = 3

So, Point C is (0,3)(0, 3).

Final Answer:

  • Point B is (2,0)(-2, 0).
  • Point C is (0,3)(0, 3).

Would you like a detailed sketch or further clarifications?

Here are five related questions for practice:

  1. What would the equation of the line look like if the intercepts were different?
  2. How would you calculate the midpoint between points B and C?
  3. What is the slope of the line through points B and C?
  4. How do the coordinates change if the line equation is modified to 2x3y=62x - 3y = 6?
  5. Can you find the area of triangle ABC using these points?

Tip: To find intercepts, always set the other variable to zero in the line equation.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Intercepts
Coordinate Geometry

Formulas

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

Theorems

Intercept Theorem
Slope Formula

Suitable Grade Level

Grades 8-10