Math Problem Statement

what's the x and y intercepts

Solution

To find the intercepts for the equation y=x+4y = -x + 4:

1. Y-Intercept:

The y-intercept is the point where the line crosses the y-axis. This occurs when x=0x = 0.

Given the equation: y=x+4y = -x + 4 Substituting x=0x = 0: y=(0)+4=4y = -(0) + 4 = 4 So, the y-intercept is (0,4)(0, 4).

2. X-Intercept:

The x-intercept is the point where the line crosses the x-axis. This occurs when y=0y = 0.

Set y=0y = 0 in the equation: 0=x+40 = -x + 4 Solve for xx: x=4x = 4 So, the x-intercept is (4,0)(4, 0).

Summary:

  • X-intercept: (4,0)(4, 0)
  • Y-intercept: (0,4)(0, 4)

Would you like to explore anything else, or do you have additional questions?

Here are five related questions:

  1. How do you find the intercepts for a quadratic equation?
  2. What do the intercepts represent on a graph?
  3. How would the intercepts change if the equation was y=2x+4y = -2x + 4?
  4. Can a linear equation have more than one x-intercept?
  5. How can you determine the slope if only the intercepts are given?

Tip: The intercepts can be found by setting x=0x = 0 (for the y-intercept) and y=0y = 0 (for the x-intercept) in the equation.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Intercepts

Formulas

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Theorems

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Suitable Grade Level

Grades 6-8