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Unformatted text preview: ; if 0 &lt; a &lt; 1 , we have exponential decay. The half-life of an exponentially decaying quantity is the time required for the quantity to be reduced by a factor of one half The doubling time of an exponentially increasing quantity is the time required for the quantity to double. Exponential growth = P P0at or = P P0ekt Exponential decay = Q Q0at or = -Q Q0e kt We say that P and Q are growing or decaying at a continuous rate of k. Quadratic + + ax2 bx c parabola A degree n equation has at most n-1 turns** = ek a lna k...
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