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# Pre-Cal 40S April 14, 2009

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Introduction to logarithms.

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### Pre-Cal 40S April 14, 2009

1. 1. Why John Napier Rocks! (well, logs actually) quot;Hello...yeah...yeah...a mathematition....A MATHEMATITION....yeah...I'm dead yeah.... by ﬂickr user Pauho
2. 2. Complete each table of values ... Let's see 2^x
3. 3. x ƒ(x) = 3 x x ƒ(x) = 5 ƒ(x) = 2
4. 4. What happens when the base of an exponential function is negative? x ƒ(x) = (-2) ≠ ƒ(x) = -2 x x ƒ(x) = (-2)
5. 5. Sketch the given function AND it's inverse on the graph.
6. 6. Let's see 2^x Then, sketch the graph of it's inverse ...
7. 7. Sketch the given function AND it's inverse on the graph.
8. 8. Rewrite each table of values for the inverse of each function ...
9. 9. The Anatomy Of A Power exponent 3 2 = 8power base power
10. 10. a b=c log b c = a b is the base b is the base a is the exponent a is the (exponent) logarithm c is the power c is the (power) argument A Logarithm is an Exponent you're going to forget that