Write the equation of the parabola if: . the vertex is -2, -8 . the point -20, -12 is on the parabola Select one: O a. y=18(x+2)^2-8 O b. None of these. O c. y=1/81(x-2) ^2-8 O d. y=-1/81(x+2)^2-8 O e. y=-18(x+2)^2-8