the x-coordinate is 6
a parabola is a two-dimensional, mirror-symmetrical curve, which is approximately u-shaped when oriented as shown in the diagram below, but which can be in any orientation in its plane. it fits any of several superficially different mathematical descriptions which can all be proved to define curves of exactly the same shape.
8y-2(y+4) first we open bracket 8y-2y-2*4
we take common 2(3y-4) answer
well, 31/2 is in simplified form
the mixed number form is 15 1/2
and the decimal form would be 15.5