Find the Domain y=3x

Problem

y=3*x

Solution

1. Identify the type of function given. The expression y=3*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 denominators that could be zero and no even roots of negative numbers.

3. Conclude that the function is defined for all real numbers because any real number multiplied by 3 results in a real number.

4. Express the domain in interval notation or set-builder notation.

Final Answer

Domain: *(−∞,∞)

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