Which is a zero of the quadratic function fx=9x2-54x-19 ? x= 1/3 x=3 1/3 x=6 1/3 x=9 1/3

Write properties of function: x intercept/zero: x_{1} = - \dfrac{1}{3}, multiplicity 1; x_{2} = \dfrac{19}{3}, multiplicity 1