December 22, 2016
Precalc Warm Up # 1-3
Solve.
1. 2x + 3 = 5
2
2. x - 4x = 5
3. 2x = 32
4.
4.
5. If you have $1000 to invest for 5 years, which investment is
better--one that compounds interest monthly at 6.5%, or one
that compounds continuously (y=ert) at 6.4%?
December 22, 2016
5. If you have $1000 to invest for 5 years, which investment is
better--one that compounds interest monthly at 6.5%, or one
that compounds continuously (y=ert) at 6.4%?
December 22, 2016
Properties of Logarithms
Look at the equality 23 = 8
We can say that log28 = 3
December 22, 2016
December 22, 2016
Evaluate log 5125
Evaluate log 64 4
December 22, 2016
Evaluate log 44
Evaluate log5 1
December 22, 2016
Some logs are UNDEFINED.
example:
What happens when you try to evaluate the
expression log3(-27)?
December 22, 2016
example 2:
What is the value of log 3 0?
December 22, 2016
December 22, 2016
Evaluate log2 25
December 22, 2016
Homework 1-2