A parabola is shown with the focus open circle and vertex closed circle marked 10 9 8 7 6 5 4 3 2 The focus F is at The directrix has equation 10 9 8 7 6 5 4 321 3 23 3 S 67 8 9 10 The line of symmetry has equation symmetry The equation of the parabola is 89 IC a and the vertex V is at Enter the equation of the directrix Enter the equation of the line of Enter the equation of the parabola The x intercept s are there is more than one separate them with commas if none exist enter DNE The 1 intercent s ar Enter the exact coordinates of the x intercept s if