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- Applications of Exponential and Logarithmic Functions

Still Confused?

Try reviewing these fundamentals first.

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Try reviewing these fundamentals first.

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Get Started Now- Lesson: 18:48
- Lesson: 26:20

In this section, we will revisit the connection between mathematics and finance, but from a different perspective. We will see how a slight variation of the Compound interest formula can help us understand some of the core concepts in Finance – Future value and Present value.

Related concepts: Derivative of inverse trigonometric functions, Derivative of logarithmic functions,

future value and present value: ${ FV = PV (1+\frac{r}{n})^{nt}}$

${FV}$: Future Value

${PV}$: Present Value

${r}$ : Annual interest rate

${t}$: total time given in**years **

${n}$ : number of times compounded in a year, if

${FV}$: Future Value

${PV}$: Present Value

${r}$ : Annual interest rate

${t}$: total time given in

${n}$ : number of times compounded in a year, if

Compound daily: |
n = 365 |

Compound monthly: |
n = 12 |

Compound quarterly: |
n = 4 |

Compound semi-annually: |
n = 2 |

Compound annually: |
n = 1 |

- 1.What is the future value of $30,000 which grows at an annual interest rate of 11%, compounded monthly, for three years?
- 2.What is the present value of $15,000 sixteen months from now if the annual discount rate is 10%, compounded quarterly?

20.

Applications of Exponential and Logarithmic Functions

20.1

Exponential growth and decay by a factor

20.2

Exponential decay: Half-life

20.3

Exponential growth and decay by percentage

20.4

Finance: Compound interest

20.5

Continuous growth and decay

20.6

Logarithmic scale: Richter scale (earthquake)

20.7

Logarithmic scale: pH scale

20.8

Logarithmic scale: dB scale

20.9

Finance: Future value and present value

We have over 1220 practice questions in NZ Year 12 Maths for you to master.

Get Started Now20.1

Exponential growth and decay by a factor

20.2

Exponential decay: Half-life

20.3

Exponential growth and decay by percentage

20.4

Finance: Compound interest

20.5

Continuous growth and decay

20.6

Logarithmic scale: Richter scale (earthquake)

20.7

Logarithmic scale: pH scale

20.8

Logarithmic scale: dB scale

20.9

Finance: Future value and present value