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- Logarithmic Functions

Still Confused?

Try reviewing these fundamentals first.

Still Confused?

Try reviewing these fundamentals first.

Nope, I got it.

That's that last lesson.

Start now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started Now- Lesson: 1a1:52
- Lesson: 1b1:57
- Lesson: 217:21

Related concepts: Logarithmic scale: Richter scale (earthquake), Logarithmic scale: pH scale, Logarithmic scale: dB scale,

- 1.Solve for $x$ , by converting from exponential form

to log form:a)$y = 5 \cdot {2^x}$b)$6 \cdot {3^x} = 90$ - 2.Let’s revisit the earlier example about Bianca saving up money to buy her dream car, Mini Cooper.

Now we are ready to find out the exact amount of time it’ll take Bianca to save up $30,000:

On Bianca’s 5-year-old birthday, Bianca gets a birthday gift of $100 cash from her dad.

Bianca’s dad promises to double her money yearly if Bianca plans to not spend the

money but instead deposits it into "daddy-super-saving-account". Will Bianca be able

to afford her dream car, Mini Cooper, worth $30,000 when she turns 16-year-old?

31.

Logarithmic Functions

31.1

What is a logarithm?

31.2

Converting from logarithmic form to exponential form

31.3

Evaluating logarithms without a calculator

31.4

Common logarithms

31.5

Natural log: ln

31.6

Evaluating logarithms using change-of-base formula

31.7

Converting from exponential form to logarithmic form

31.8

Solving exponential equations with logarithms

31.9

Product rule of logarithms

31.10

Quotient rule of logarithms

31.11

Combining product rule and quotient rule in logarithms

31.12

Evaluating logarithms using logarithm rules

31.13

Solving logarithmic equations

31.14

Graphing logarithmic functions

31.15

Finding a logarithmic function given its graph

We have over 2160 practice questions in ACT Compass Test Prep for you to master.

Get Started Now31.1

What is a logarithm?

31.2

Converting from logarithmic form to exponential form

31.3

Evaluating logarithms without a calculator

31.4

Common logarithms

31.5

Natural log: ln

31.6

Evaluating logarithms using change-of-base formula

31.7

Converting from exponential form to logarithmic form

31.8

Solving exponential equations with logarithms

31.9

Product rule of logarithms