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A concept do not understand

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Explain it! y = a(x - h)^2 + k Is x = h? If Yes, Assume h is 6, x is also 6. Then a(6-6)^2, this things would be 0.

最佳解答:

Usually x and y are variables and a, h and k are constant. In your case, y varies according to x^2, Therefore, the formula could be plotted as a parabola with open downwards. There is an instant that x = h Then y = a(0)^2 + k = k which is a special point of this parabola (h, k) which is the highest point of the parabola.

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