Which second degree polynomial function fx has a lead coefficient of 3 and roots 4 and 1? fx=3x2+5x+4 fx=3x2+15x+12 fx=3x2-5x+4 fx=3x2-15x+12

a Write properties of function: x intercept/zero: noorder/degree: 2b Write properties of function: x intercept/zero: x_{1} = -4; x_{2} = -1order/degree: 2c Write properties of function: x intercept/zero: noorder/degree: 2d Write properties of function: x intercept/zero: x_{1} = 1; x_{2} = 4order/degree: 2