A tall drinking glass has a diameter of 8 centimeters and a height of 20 centimeters. What is the volume of liquid in the drinking glass to the nearest cubic centimeter if it is only half full?

The answer would be 10.

Idon't see any graph, however the graph of the function : f(x) = x²-2x+3 is a parabola: 1) open upward (since a> 0)2) it intersects y-axis in 3 (y=3)3) its axis of symmetry is x = +1 ( -b/2a)4) it's minimum is y = -2, so its vertex is (1,-2)5) it doesn't intersect the x-axis since discriminant < 0