It is given that P(h,6) is the vertex of the graph of the function y=x^2-6x+15
(a)Find the value of h.
(b)Find the axis of symmetry of the graph.
Functions
2009-10-28 5:28 am
回答 (1)
2009-10-28 5:39 am
✔ 最佳答案
(a) y = x^2 - 6x + 15y = x^2 - 6x + 9 + 6
y = (x - 3)^2 + 6
Vertext = (3,6)
h = 3
(b) axis of symmetry is x = 3
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