Which is true about the polynomial y² - 3y + 12?
It is a binomial with a degree of 2.
It is a binomial with a degree of 3.
It is a trinomial with a degree of 2.
It is a trinomial with a degree of 3.

Solution:

A polynomial is a type of algebraic expression in which the exponents of all variables should be a whole number.

The exponents of the variables in any polynomial have to be a non-negative integer. 

y² - 3y + 12 is a polynomial with three terms.

Hence it is a trinomial.

A trinomial is an algebraic expression that has three terms.

The highest power of the variable y in the given polynomial is 2.

Hence the degree of the polynomial is 2.

Which is true about the polynomial y² - 3y + 12?

Summary:

The statement which is true about the polynomial y² - 3y + 12 is that it is a trinomial with a degree of 2.