these are two separate questions, i need help on both please. i will mark brainliest on helpful answers :)

Which of the following equations is of the parabola whose vertex is at (2, 3), axis of symmetry parallel to the y-axis and p = 4? a.)y-3 = 1/16 (x-2)^2 b.)y+3 = -1/16 (x+2)^2 c.)x-2 = 1/16 (y-3)^2

Is a positive integer raised to a negative power always positive

Hi, can anyone show me how to do this problem? 100 points for this. in advance