Square Within a Square

Nicole Mosteller

EMAT 6690


Find the equation that fits the following function.

Graph 1: To find the equation for the relation, use the given information.


Substitution on f(x):

Let's first start with the 2nd degree function and

substitute the following know values: (-1, 2), (0, 1), and (1,0).

From this substitution, the following equations are derived.




Substitution on f'(x):

Because we know that the maximum occurs at (-1, 2), we can substitute x = -1 into the 1st derivative function.

This gives us Equation 4.

And with the minimum occurring at (1, 0), we can substitute x = 1 into the 1st derivative function as well.

This gives us Equation 5.

 


Substitution on f''(x):

Our inflection point at (0, 1) allows us to make a substitution into the 2nd derivative function x = 0.

This gives us Equation 6.


Using these six equations, can we find the values of a, b, c, w, y, and z so as to solve ?


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