Find the Domain y=x

Problem

y=x

Solution

1. Identify the type of function. The given equation y=x is a linear function, which is a specific type of polynomial function.

2. Determine if there are any restrictions on the input variable x For polynomial functions, there are no square roots of negative numbers, no divisions by zero, and no logarithms of non-positive numbers.

3. Conclude that the variable x can take any real number value.

4. Express the domain in interval notation, which represents all real numbers from negative infinity to positive infinity.

Final Answer

Domain: *(−∞,∞)

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