For the quadratic function (x) = a(x - h) 2 + k, in what quadrant is the vertex if the values of h and k

For the quadratic function ƒ(x) = a(x - h)² + k, in what quadrant is the vertex if the values of h and k are as follows?

(a) h> 0, k>0 (c) h 0 (b) h> 0, k