Question

Точка А(1;9) ЛЕЖИТ НА ПАРАБОЛЕ y=-x^2+ax+4.найдите ординату вершины параболы?

Answer 1

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Answer 2

Finding the Ordinate of the Vertex of a Parabola

To find the ordinate of the vertex of the parabola represented by the equation y = -x^2 + ax + 4, we need to determine the value of the y-coordinate at the vertex.

The vertex of a parabola in the form y = ax^2 + bx + c is given by the formula (-b/2a, f(-b/2a)), where f(x) represents the value of y.

In this case, the equation of the parabola is y = -x^2 + ax + 4. Comparing it to the general form, we can see that a = -1, b = a, and c = 4.

To find the value of a, we need more information. Unfortunately, the given equation does not provide enough details to determine the value of a. Therefore, we cannot find the exact ordinate of the vertex without additional information.

If you have any additional information or if there is anything else I can assist you with, please let me know!