What does 4a + 5j - 8 + 5k equal

Which of the following equations is of the parabola whose vertex is at (4, 3), axis of symmetry parallel to the y-axis and focus at (4, -3)? a.) y+3=1/24 (x+4)^2 b.)y-3=-1/24 (x-4)^2 c.)x-4=-1/24 (y-3)^2

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

What is mean median mode and range?