Answer:
The minimum point is (4.5, -1.25).
Explanation:
x^2+19=9x
= x^2 - 9x + 19 = 0
Convert to Vertex form:
(x - 4.5)^2 - 4.5^2 + 19 = 0
= (x - 4.5)^2 - 1.25.
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