Varying a
The animation shows how the graph of y = ax2 + bx + c changes as a varies.

Varying b
The animation shows how the graph of y = ax2 + bx + c changes as b varies.

What is the locus of the minimum? Click here to find out.
Varying a and b but keeping b/a constant.
Make a prediction!
How does the graph of y = ax2 + bx + c change as a and b vary in such a way that b/a is held constant.
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