Adri T.

asked • 10/21/23

Take a general quadratic function f(t)=at2+bt+c

Take a general quadratic function f(t)=at2+bt+c and compute the second difference for adjacent points t,t+1, and t+2

(Hint: Your answer could depend on the coefficients a,b and c.)

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Doug C. answered • 10/22/23

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Doug C.

Here is Desmos graph with a general quadratic function (coefficients a,b,c) where you can set the starting value s for a sequence of 4 x values. Then lists are used to compute first and second differences and the result is always 2a.
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10/22/23

Doug C.

Typo in first graph, Here is corrected version: desmos.com/calculator/9jtdjpyygp
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10/22/23

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