Functions

2009-10-28 5:28 am

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.

回答 (1)

2009-10-28 5:39 am

✔ 最佳答案

(a) y = x^2 - 6x + 15
y = x^2 - 6x + 9 + 6
y = (x - 3)^2 + 6
Vertext = (3,6)
h = 3
(b) axis of symmetry is x = 3

👍 0 👎 0