Yes...because every x value corresponds to exactly one y value
a function will not have any repeating x values...it can have repeating y values, just not the x ones. So if all the x values are different, then it is a function
Volume of a cone is 1/3 of the area of the base times the height
v=(1/3)pi*5*5*18=(1/3)pi815*15*h
h=2
The answer to this one is<em> xy + 4</em>
4x2 is 8
8x24 is 192
Answer is 192
