Let \(H(y) = -(y-3)^2 + 4\) with the natural domain.
\(-(y-3)^2 + 4 = 0\)
\(4 = (y-3)^2 \)
Either \(y-3 = \answer {-2}\) or \(y-3 = 2\)
Either \(y = \answer {1}\) or \(y = 5\).
From left to right on the graph, the corresponding intercepts are \(\left ( \answer {1}, \answer {0} \right )\) and \(\left ( \answer {5}, \answer {0} \right )\)