Write a polynomial function in standard form with zeros at 1,5, 3

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.

Which of the following circles have their centers in the third quadrant? check all that apply.

Y+ 2/y is it a polynomial in one variable or not? and if so, why?