1 point Find all zeros and vertical asymptotes of the rational function f x If there is more than one answer enter your answers as a comma separated list If there is no solution enter NONE Do not leave a blank empty a The function has x intercept s at x help numbers x 1 x 1 b The function has y intercept s at y help numbers X c The function has vertical asymptote s when help numbers Y d The function has horizontal asymptote s when help numbers