ax2bxc.gsp

Form 4 Mathematics

Effects of a, b, c on the graph of y = ax² + bx + c

This is a prototype of JavaSketchpad, a World-Wide-Web component of The Geometer's Sketchpad. Copyright & copy ; 1990-1998 by Key Curriculum Press, Inc. All rights reserved. Portions of this work were funded by the National Science Foundation (awards DMI 9561674 & 9623018).

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The above figure shows the graph of y = ax²+ bx + c.

Drag the control points to vary the values of a, b and c. Observe the changes of the shape of the graph.

When a = 0, what does the graph represent? Is it a quadratic graph?

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