The equation of the parabola is 12y = (x - 1)^2 - 48. Identify the vertex, focus, and directrix of the parabola.

Okay, I DO NOT need anyone to solve this whole thing. I ONLY need to HOW you find the value of C in the focus (h + k +- c). I know c = 3, but how???

Write a polynomial that fits the description: a third-degree polynomial with leading coefficient -4

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv