Find the Domain -x-y=1

Problem

−x−y=1

Solution

1. Identify the type of equation. The equation −x−y=1 represents a linear function in two variables.

2. Solve for y to express the equation in function notation y=ƒ(x)

−y=x+1

y=−x−1

3. Analyze the resulting expression for restrictions. The expression −x−1 is a polynomial.

4. Determine the domain. Polynomials are defined for all real numbers because there are no denominators that could be zero and no even roots of negative numbers.

5. State the domain in interval notation. Since x can be any real number, the domain is (−∞,∞)

Final Answer

Domain: *(−∞,∞)

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