Logarithmic Functions: Solving and Simplifying Equations and Expressions, Assignments of Pre-Calculus

Examples and exercises on writing equations in logarithmic and exponential form, simplifying logarithmic expressions, and finding the value of x in logarithmic equations. Prerequisite topic for math 1330.

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Pre 2010

Uploaded on 08/17/2009

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Math 1330
Prerequisites Topic 14
Logarithmic Functions
You should be familiar with a variety of skills from college algebra having to do with
logarithmic functions.
Example 1: Write the following equation in logarithmic form.
322
5
=
Example 2: Write the following equation in logarithmic form.
2
1
8
3
1
=
Example 3: Write the following equation in logarithmic form.
xe
=
4
Example 4: Write the following equation in exponential form.
664log
2
=
Example 5: Write the following equation in exponential form.
2
3
8log
4
=
pf3
pf4
pf5

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Math 1330 Prerequisites Topic 14 Logarithmic Functions

You should be familiar with a variety of skills from college algebra having to do with logarithmic functions.

Example 1: Write the following equation in logarithmic form.

25 = 32

Example 2: Write the following equation in logarithmic form.

1

Example 3: Write the following equation in logarithmic form.

e^4 = x

Example 4: Write the following equation in exponential form. log 2 64 = 6

Example 5: Write the following equation in exponential form.

log 4 8 =

Example 6: Simplify the following expression. log 39

Example 7: Simplify the following expression. log 91

Example 8: Simplify the following expression. 121 log 1111

Example 9: Simplify the following expression.

log 2

Example 10: Simplify the following expression. 4 log 5 5

Example 11: Simplify the following expression.

log 36 6

Example 17: Find the value of x in the following equation. ln x = 4

Example 18: Find the value of x in the following equation. 2 x + 3 =− 3 +log 66

Example 19: State the domain and range of the function in this graph. Determine if the function is increasing or decreasing. State the vertical asymptote.

Example 20: State the domain and range of the function in this graph. Determine if the function is increasing or decreasing. State the vertical asymptote.