Question

Which of the following is not a polynomial?

Answer 1

`(4)/(y)\ \text{is not a polynomial because the power of }y\text{ here is -1, which is not a whole}\\\text{number.}`

`\text{A polynomial is a mathematical expression made up of variables, coefficients, }\\\text{and mathematical operations (such as addition, subtraction, multiplication, }\\\text{and exponentiation) that involve only non-negative integer exponents.}`