What is the discontinuity and zero of the function f(x) = the quantity of 3 x squared plus x minus 4, all over x minus 1 ? (2 points) Discontinuity at (−1, 1), zero at ( four thirds , 0) Discontinuity at (−1, 1), zero at ( negative four thirds , 0) Discontinuity at (1, 7), zero at ( four thirds , 0) Discontinuity at (1, 7), zero at ( negtive four thirds , 0)