Pls Help! Need this ASAP! Determine whether the following relation is a function.

{(3,7),(3,8),(3,-2),(3,4),(3,1)}

A. It is a function because the ordered pairs all have the same x-value.
B. It is not a function because there are multiple y-values paired with a single x-value.
C. It is a function because none of the ordered pairs have the same y-value.
D. It is not a function because none of the ordered pairs have the same y-value.

The parabola opens: y=√x-4 (principal square root) up down right left

Acylinder with a base diameter of x units has a volume of jxcubic units which statements about the cylinder are true? check all that apply. the radius of the cylinder is 2 x units. the radius of the cylinder is 2x units. the area of the cylinder's base is 200 square units. the area of the cylinder's base is a square units. the height of the cylinder is 2x units. the height of the cylinder is 4x units. mark this and return save and exit next submit

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?