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piecewise equation

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2 items are filed under this topic.
y = p q^t 2009-02-12
From Conor:
y= p x (q (to the power t) ) ; y= 100 when t = 2 and y= 4 when t= 0

a) find p and q
b) hence find y when t=4

Answered by Stephen La Rocque.
A piecewise equation 2008-06-16
From John:
AT&T charges $39.99 for 450 minutes per month. It charges 45 cents per minute over the 450 minutes. How can I make a piecewise equation of this problem?
Answered by Penny Nom.



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