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In diagram A, we can see that this parabola has 2 roots, diagram B has 1 root and diagram C has no roots. What type of roots the equation has can be shown by the discriminant.
The quadratic equation is an ancient staple of mathematics that dates back to ancient Babylonians in 2000 BC. It was originally devised as a way to help calculate problems involving rectangles ...
Hirofumi Wakaki, Comparison of Linear and Quadratic Discriminant Functions, Biometrika, Vol. 77, No. 1 (Mar., 1990), pp. 227-229 ...
The equation of a a quadratic function can be determined from a graph showing the turning point and another point on the graph. Brush up on your knowledge on how to recognise and determine the ...
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