Math Problem Statement

Find the x-intercept of the line 9x–3y=24. Write your answer as an integer or as a simplified proper or improper fraction, not as an ordered pair.

Solution

To find the x-intercept of the line 9x3y=249x - 3y = 24, we set y=0y = 0 because the x-intercept occurs when the line crosses the x-axis, and at that point, y=0y = 0.

Substitute y=0y = 0 into the equation:

9x3(0)=249x - 3(0) = 24 9x=249x = 24

Now, solve for xx:

x=249=83x = \frac{24}{9} = \frac{8}{3}

So, the x-intercept is 83\frac{8}{3}.

Would you like further details or have any questions?

Here are 5 related questions:

  1. What is the y-intercept of the line 9x3y=249x - 3y = 24?
  2. How do you find the slope of the line 9x3y=249x - 3y = 24?
  3. Can you express the equation 9x3y=249x - 3y = 24 in slope-intercept form?
  4. How would you graph the line 9x3y=249x - 3y = 24?
  5. What are the intercepts of the line 2x+5y=102x + 5y = 10?

Tip: The x-intercept is always found by setting y=0y = 0 in the equation of a line.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Coordinate Geometry

Formulas

x-intercept: Set y = 0 in the equation of the line

Theorems

Intercept Theorem: The x-intercept is the point where the line crosses the x-axis, meaning y = 0

Suitable Grade Level

Grades 7-9