This is a good question because it goes to the heart of a lot of real math. Select three ordered pairs from the table. 1 to factor the quadratic equation if you can do so 2 to use the quadratic formula or 3 to complete the square.
As an exercise you are asked to find the equation of a quadratic function whose graph is shown in the applet and write it in the form f x a x 2 b x cYou may also USE this applet to Find Quadratic Function Given its Graph generate as many graphs and therefore questions as you wish.
The answer is given by the same applet. Here is the graph of. Find zeros of a quadratic function by Completing the square There are some quadratic polynomial functions of which we can find zeros by making it a perfect square. The answer is given by the same applet.