Select all of the following functions that are quadratic. □ y=2x² 3=2x²-8 y=-2+2x-8 y + 3x = 2x² - 8 Oy+3x²= 2x + 3x²-8​

Select all of the following functions that are quadratic y2x 32x8 y22x8 y 3x 2x 8 Oy3x 2x 3x8 class=