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Exercises Exponentials and logarithms

Example 8 from Algebra and Trigonometry, 6.3 Logarithmic Functions

Evaluating a Natural Logarithm Using a Calculator

Evaluate $y = \ln (500)$ to four decimal places using a calculator.

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

1
Solution
- Press [LN].
- Enter $500,$ followed by [ ) ].
- Press [ENTER].
Rounding to four decimal places, $\ln (500) \approx 6.2146$

Your turn

The book's Try It right after this example: same idea, new numbers. Only the answer is given.

Evaluate $\ln (−500) .$

How did it go?

PreviousRewriting and Solving a Real-World Exponential Model Next Identifying the Domain of a Logarithmic Shift

From Algebra and Trigonometry (1st edition) by OpenStax (Rice University), section 6.3, licensed under CC BY 4.0. Original at openstax.org. We split the solution into steps; the words, numbers and figures are the book's. OpenStax doesn't endorse this site.