Use slip and slide method
x^2+13x-30
(x+15)(x-2)
(x+15/6)(x-2/6)
(x+5/2)(x-1/3)
(2x+5)(3x-1)
Final answer: (3x-1)
Maybe try (-9, 6) and (-9,5)
i think it may be correct
If a right circular cone intersects a plane that runs parallel to the edge of the cone, the resulting curve will be a <u>parabola</u>.
A parabola is curved from one end and open from other end, therefore it would fit the best.
Hope I could help! :)