Why Quadratic equations are shaped like U ?
Think about y=x^2
x can be either plus or minus and produce the same y value. Sp, as y grows on one side of the axis, it also grows on the other side.
Plot a few points.
x can be either plus or minus and produce the same y value. Sp, as y grows on one side of the axis, it also grows on the other side.
Plot a few points.