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 , we set because the x-intercept occurs when the line crosses the x-axis, and at that point, .
Substitute into the equation:
Now, solve for :
So, the x-intercept is .
Would you like further details or have any questions?
Here are 5 related questions:
- What is the y-intercept of the line ?
- How do you find the slope of the line ?
- Can you express the equation in slope-intercept form?
- How would you graph the line ?
- What are the intercepts of the line ?
Tip: The x-intercept is always found by setting 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