Which expressions are polynomials?
select each correct answer.
y^2−y√3+4
2x^4−y
6 + w
z + 1

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

In a right triangle δabc, the length of leg ac = 5 ft and the hypotenuse ab = 13 ft. find: b the length of the angle bisector of angle ∠a.

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?