Answer:
What happens when h is positive?
The asymptote of the graph shifts <em>right</em> by that amount.
What happens when h is negative?
The asymptote of the graph shifts <em>left</em> by that amount.
What happens when k is positive?
The entire graph shifts <em>up</em> by that amount.
What happens when k is negative?
The entire graph shifts <em>down</em> by that amount.