Math Problem Statement

graph the linear equation by finding and plotting its intercepts. x-y=-2

Solution

To graph the linear equation xy=2x - y = -2 by finding and plotting its intercepts, we need to follow these steps:

1. Find the x-intercept:

The x-intercept occurs when y=0y = 0.

  • Substitute y=0y = 0 into the equation xy=2x - y = -2: x0=2x - 0 = -2 x=2x = -2 Thus, the x-intercept is (2,0)(-2, 0).

2. Find the y-intercept:

The y-intercept occurs when x=0x = 0.

  • Substitute x=0x = 0 into the equation xy=2x - y = -2: 0y=20 - y = -2 y=2y = 2 Thus, the y-intercept is (0,2)(0, 2).

3. Plot the intercepts and draw the line:

  • Plot the points (2,0)(-2, 0) and (0,2)(0, 2) on the graph.
  • Draw a straight line through these two points. This line represents the equation xy=2x - y = -2.

Summary:

  • x-intercept: (2,0)(-2, 0)
  • y-intercept: (0,2)(0, 2)

If you'd like, I can provide a visual graph as well. Would you like me to generate the graph for you?

Relative questions:

  1. How do you find the slope from an equation in standard form?
  2. What is the general form of a linear equation?
  3. How can we determine if two lines are parallel?
  4. What is the slope-intercept form of a line?
  5. How do you find the equation of a line given two points?

Tip: The x-intercept occurs when y=0y = 0, and the y-intercept occurs when x=0x = 0.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Intercepts

Formulas

x - y = -2
x-intercept occurs when y = 0
y-intercept occurs when x = 0

Theorems

Intercept theorem

Suitable Grade Level

Grades 6-8