New Vocabulary:

1. Sequence- an ordered list of numbers or objects called terms in a certain order
ex.1,2,3,4 or ex. Monday, Tuesday, Wednesday

2. term(in a sequence)- an element or number in a sequence
ex.{1, 2, 3, 4}_{1,2,3,4 are each terms} ex.{a, b}_{a and b are terms}

Often times you will be asked to name the next term, or the next three terms in a sequence.

One type of sequence is an arithmetic(air-ith-metic) sequence

3. arithmetic sequence- an ordered list of numbers in which the difference between consecutive terms is always the same
ex.2, 4, 6,______,______,______ The next3 terms are 8, 10, 12 because these are consecutive even integers. The difference between each term is 2.
ex.2, 4, 6, 8, 10, 12 ex.8, 13, 18, 23, 28

4. consecutive- following one right after the other in order
ex.{Jan, Feb, March} ex.{1, 3, 5, 7}consecutive odd numbers

5. Common difference-the difference between any two successive terms in an arithmetic sequence
* You cannot tell if a sequence is arithmetic by looking at a finite number of terms, because the next term might not fit the pattern.
ex. {1, 2, 4, 8, 16...} This sequence is not arithmetic.*

• commission- a fee paid to a person for making a sale
• commission rate- the fee paid to a person who makes a sale expressed as a percent of the selling price
• salary- the fee paid at regular times for work or services
• sales tax- the tax on the sale of an item or service; it is a percent of the purchase price and is collected by the seller
• withholding tax- a tax deducted from a person’s earnings as an advance payment of income tax
• income tax- a tax on the income of a person or business
• income- a gain usually measured in money that comes in from labor, business, or property
• bonus- a fee given to a worker in addition to what’s usual or owed

Commission rate(sales)=commission

L8-7

• interest- the amount of money charged for or borrowing money; interest is money paid for the use of money
• simple interest- is one type of fee paid for the use of money; it is a fixed percent of the principal
• principal- is the amount of money borrowed or invested
• rate of interest- is the percent charged or earned on an amount of money
• time- that the money is borrowed or invested (in years)

SIMPLE INTEREST FORMULA: I=PRT

Amount (Total) A=P+I

Sequencing

Sequencing Help