Math Problem Statement
Find the x-intercept and the y-intercept of the graph of the equation: 3x + 5y = 30. The x-intercept is 10. What is the y-intercept?
Solution
The equation given is . We need to find both the x-intercept and the y-intercept.
1. X-intercept:
The x-intercept occurs when . Substituting into the equation:
Thus, the x-intercept is , which is already provided in the image.
2. Y-intercept:
The y-intercept occurs when . Substituting into the equation:
Thus, the y-intercept is .
Would you like more details on this? Here are some related questions for further exploration:
- What is the geometric meaning of the x- and y-intercepts?
- How would you graph the line using the intercepts?
- Can you rewrite the equation in slope-intercept form?
- What is the slope of the line in this equation?
- How would the intercepts change if the constants in the equation were different?
Tip: When solving for intercepts, remember that at the x-intercept, , and at the y-intercept, .
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Intercepts
Formulas
x-intercept: Set y = 0 in the equation
y-intercept: Set x = 0 in the equation
Theorems
Linear Equation Intercepts
Suitable Grade Level
Grades 7-9