KimRaWol KimRaWol

09-07-2017
Mathematics

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what is the maximum or minimum of the quadratic function y = 16x^2 +40x +25

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Officiallytimothy Officiallytimothy

09-07-2017

y = 16x^2+ 40x + 25

The sign before the 16 is positive, so it's a parabola with a minimum. The x coordinate of the minimum is:
x=-b/2a=-40/32=5/4=-1.25

If you fill that in, you get y=0

so the coordinates are (1.25, 0)

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