Which function is the result of vertically stretching f(x) = x² by a factor of 2 and
translating it 4 units upward?
OA) y=2x² - 4
OB) y=-4x² + 2
C) y = 4x² + 2
OD) y = 2x² + 4

Which function is the result of vertically stretching fx x by a factor of 2 and translating it 4 units upward OA y2x 4 OB y4x 2 C y 4x 2 OD y 2x 4 class=