(adsbygoogle = window.adsbygoogle || []).push({}); Logarithms....i need help.

A logarithm of a number is the exponent of the power to which a fixed number. called the base, must be raised to produce the given number.

I absolutely do not understand what these things mean. In my text book it shows a graph of x=10y.

Then it follows with 6 questions which are as follows:

1. For what values of x do the corresponding logarithms change most rapidly?

2. How does the rate of change of y compare with that of x for values of x between 1 and 10?

3. For what values of x are the values of y negative?

4. What is the approximate value of y when x=8? 15? 28?

5. What is the number whose logarithm is .2? .4? 1.2? 1.4?

6. Show that in the graph log 10 is approximately equal to log 5+log 2; that log 5 is approximately equal to log 25-log 5. that log 27 is approximately equal to 3 log 3.

PLEASE ANSWER BUT EXPLAIN HOW THESE ARE DONE PLEASE......

Thanks.

Amber

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# Homework Help: Logarithms i need help.

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