Math Problem Statement
Find the x- and y-intercepts of the graph of -8x + 7y = 40. State each answer as an integer or an improper fraction in simplest form.
Solution
To find the x- and y-intercepts of the equation:
we'll solve for each intercept by setting the other variable to zero.
Finding the x-intercept:
The x-intercept occurs where .
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Substitute into the equation:
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Solve for :
So, the x-intercept is .
Finding the y-intercept:
The y-intercept occurs where .
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Substitute into the equation:
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Solve for :
So, the y-intercept is .
Final Answer:
- x-intercept:
- y-intercept:
Would you like more details on intercepts or have any further questions?
Here are some related questions to expand your understanding:
- How do you find the slope of a line given in standard form, such as ?
- What is the process to convert an equation in standard form to slope-intercept form?
- Can you find the distance between the x- and y-intercepts of this line?
- How does the standard form of a line help identify intercepts?
- What would the intercepts be if the constant term on the right side of the equation was changed?
Tip: To quickly find intercepts, remember that setting finds the x-intercept and setting finds the y-intercept.
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Intercepts
Formulas
Ax + By = C (standard form of a linear equation)
Theorems
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Suitable Grade Level
Grades 8-10