SOLUTION: When rewriting an exponential expression with a negative exponent and positive base to an expression containing only a posiive exponent, does the sign of the base change?
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Question 447445: When rewriting an exponential expression with a negative exponent and positive base to an expression containing only a posiive exponent, does the sign of the base change?
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Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
When rewriting an exponential expression with a negative exponent and positive base to an expression containing only a positive exponent, does the sign of the base change?
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No; the negative in the exponent means "invert the base";
it does not mean you should change the sign of the base.
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Ex:
y = 10*2^(-t)
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y = 10*(1/2)^t
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Cheers,
Stan H.
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