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January 1st, 2013, 02:10 PM   #1
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Graphs help?

How do you draw this:
N against t N(t) = -6/25 t2 + 6/5 t

Then work out what domain of values of t is the model realistic.
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January 1st, 2013, 02:32 PM   #2
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Re: Graphs help?

Quote:
Originally Posted by johnni370
How do you draw this:
N against t N(t) = -6/25 t2 + 6/5 t
Graph paper and pencil with eraser.
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January 2nd, 2013, 12:33 AM   #3
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The graph is parabolic and has a maximum value for N(t) of 3/2, occurring for t = 5/2.
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January 2nd, 2013, 01:15 AM   #4
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Re: Graphs help?

Could someone show me a quick sketch?
Im confusing myself wether it'll be going downward or upward.
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