If the inverse scale function y = (k-1) x ^ k & # 178; - 5 passes through two or four quadrants, then k =?

If the inverse scale function y = (k-1) x ^ k & # 178; - 5 passes through two or four quadrants, then k =?

Because of the inverse scale function, K & # 178; - 5 = - 1
K = 2 or - 2
And because it passes through quadrants two and four, so k-1