Math Problem Statement

Determine the x-intercept and y-intercept for 3x - 5y = 30. [4 marks]

Solution

Problem:

We are tasked to find the x-intercept and y-intercept for the equation 3x5y=303x - 5y = 30.


Solution:

1. Find the x-intercept:

The x-intercept occurs when y=0y = 0. Substituting y=0y = 0 into the equation:

3x5(0)=303x - 5(0) = 30

3x=303x = 30

x=303=10x = \frac{30}{3} = 10

Thus, the x-intercept is (10,0)(10, 0).


2. Find the y-intercept:

The y-intercept occurs when x=0x = 0. Substituting x=0x = 0 into the equation:

3(0)5y=303(0) - 5y = 30

5y=30-5y = 30

y=305=6y = \frac{30}{-5} = -6

Thus, the y-intercept is (0,6)(0, -6).


Final Answer:

  • x-intercept: (10,0)(10, 0)
  • y-intercept: (0,6)(0, -6)

Let me know if you'd like further explanation or details!


Related Questions:

  1. What is the slope of the line represented by 3x5y=303x - 5y = 30?
  2. Rewrite 3x5y=303x - 5y = 30 in slope-intercept form (y=mx+by = mx + b).
  3. Determine if the line intersects the origin.
  4. Solve for yy when x=4x = 4.
  5. What are the coordinates of the midpoint between the x- and y-intercepts?

Tip:

When finding intercepts, always substitute y=0y = 0 for the x-intercept and x=0x = 0 for the y-intercept.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Intercepts in Coordinate Geometry

Formulas

For x-intercept: y = 0, solve for x
For y-intercept: x = 0, solve for y

Theorems

Linear equation representation in two variables

Suitable Grade Level

Grades 8-10