Monday, December 12, 2011

Explain why the value of an exponential function with a positive base b must be a positive number?

Explain why the value of an exponential function with a positive base b, must be a positive number!!





pleaseee like only 2-3 sentences needed...i need this within the next hour!! pleaseeee|||A positive (whole numbered) index tells you the number of factors and the base tells you what each factor is. Since there are no negative signs the answer will be positive.





A negative index tells you to reciprocate it, but the result will still be a positive value (just a small one) since you are dividing positive one by a positive number.





A fractional index CAN give a negative number. For example, 16^(1/2) can equal either 4 or -4 (but is usually accepted as 4)





A negative fractional index gives a similar result as the fractional index, except a really small answer.|||if you raise a positive number to a power....it will always remain positive. if you raise to a positive number it gets larger and if you raise to a negative number it gets smaller...but never gets negative. raising to a negative number is the same as the reciprocal of raising to that number.|||Even if you multiply a positive number by itself x times, you will still get a positive number because you never had any negative signs to begin with.

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