Math Problem Statement

Find the intercepts of the equation -x+y=4

Solution

Let's find the intercepts of the equation x+y=4-x + y = 4.

1. Finding the x-intercept:

To find the x-intercept, set y=0y = 0 in the equation and solve for xx:

x+0=4x=4x=4-x + 0 = 4 \quad \Rightarrow \quad -x = 4 \quad \Rightarrow \quad x = -4

So, the x-intercept is (4,0)(-4, 0).

2. Finding the y-intercept:

To find the y-intercept, set x=0x = 0 in the equation and solve for yy:

0+y=4y=4-0 + y = 4 \quad \Rightarrow \quad y = 4

So, the y-intercept is (0,4)(0, 4).

Final Answer:

  • The x-intercept is (4,0)(-4, 0).
  • The y-intercept is (0,4)(0, 4).

Would you like more details on how these intercepts were calculated or have any other questions?

Here are 5 related questions:

  1. How would the intercepts change if the equation was x+y=4-x + y = -4?
  2. What is the slope of the line given by the equation x+y=4-x + y = 4?
  3. How do you graph a line using its intercepts?
  4. What happens to the intercepts if the equation is multiplied by a constant?
  5. How do you interpret intercepts in a real-world context?

Tip: Always check your work by plugging the intercepts back into the original equation to verify that they satisfy it.

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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 7-9