Math Problem Statement

Find the x- and y-intercepts of the line 10x+8y=20. Write your answers as integers or as simplified proper or improper fractions, not as ordered pairs.

Solution

To find the x-intercept and y-intercept of the line given by the equation:

10x+8y=2010x + 8y = 20

Finding the x-intercept:

The x-intercept occurs when y=0y = 0. So, substitute y=0y = 0 into the equation:

10x+8(0)=2010x + 8(0) = 20 10x=2010x = 20 x=2010=2x = \frac{20}{10} = 2

Thus, the x-intercept is x=2x = 2.

Finding the y-intercept:

The y-intercept occurs when x=0x = 0. So, substitute x=0x = 0 into the equation:

10(0)+8y=2010(0) + 8y = 20 8y=208y = 20 y=208=52y = \frac{20}{8} = \frac{5}{2}

Thus, the y-intercept is y=52y = \frac{5}{2}.

Final Answers:

  • x-intercept: x=2x = 2
  • y-intercept: y=52y = \frac{5}{2}

Would you like more details or have any questions? Here are some related questions for further exploration:

  1. How can you use the slope-intercept form of a line to find intercepts?
  2. What does the slope of a line represent in terms of intercepts?
  3. How do you find intercepts for other linear equations in standard form?
  4. Can you identify the intercepts of a vertical or horizontal line?
  5. How can you graph a line once you have its intercepts?

Tip: When finding intercepts, set the opposite variable to zero and solve for the remaining variable.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Intercepts

Formulas

x-intercept: set y = 0
y-intercept: set x = 0

Theorems

Intercept form of a line

Suitable Grade Level

Grades 8-10