Math Problem Statement

Find the x- and y-intercepts of the line. Enter each answer as an ordered pair. 9y - x = -1.

Solution

The equation of the line is:

9yx=19y - x = -1

To find the x-intercept and y-intercept, we proceed as follows:

1. Find the x-intercept:

The x-intercept occurs when y=0y = 0. Substitute y=0y = 0 into the equation:

9(0)x=19(0) - x = -1

x=1    x=1-x = -1 \quad \implies \quad x = 1

So, the x-intercept is:

(1,0)(1, 0)


2. Find the y-intercept:

The y-intercept occurs when x=0x = 0. Substitute x=0x = 0 into the equation:

9y0=19y - 0 = -1

9y=1    y=199y = -1 \quad \implies \quad y = -\frac{1}{9}

So, the y-intercept is:

(0,19)\left( 0, -\frac{1}{9} \right)


Final Answer:

  • x-intercept: (1,0)(1, 0)
  • y-intercept: (0,19)\left( 0, -\frac{1}{9} \right)

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Related Questions:

  1. How do you find intercepts for a line in general form Ax+By=CAx + By = C?
  2. Can you graph the line 9yx=19y - x = -1 based on these intercepts?
  3. How do you convert 9yx=19y - x = -1 into slope-intercept form y=mx+by = mx + b?
  4. What is the slope of the line 9yx=19y - x = -1?
  5. How do intercepts help in graphing linear equations?

Tip:

Always remember that the x-intercept is found by setting y=0y = 0, and the y-intercept is found by setting x=0x = 0.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Intercepts

Formulas

Set y = 0 for x-intercept
Set x = 0 for y-intercept

Theorems

Linear Equation Intercept Theorem

Suitable Grade Level

Grades 8-10