Find the Domain x+y=240

Problem

x+y=240

Solution

1. Identify the type of equation. The equation x+y=240 represents a linear function in two variables.

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

y=240−x

3. Analyze the expression for restrictions. The expression $240 - x$ is a polynomial.

4. Determine if there are any values of x that would result in an undefined expression, such as division by zero or the square root of a negative number. Since there are no such operations, x can be any real number.

5. State the domain in interval notation. The domain includes all real numbers from negative infinity to positive infinity.

Final Answer

Domain:(−∞,∞)

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