Determine whether each relation is a function. (Just write yes or no). USE

YOUR OWN PAPER.

1. {(-5, 2), (3, -3), (1,7), (3, 0)}

2. {(2, 7), (-5, 20), (-10, 20), (-2, 10), (1, 20)}

3. A 4.

Continuing 8.1Functions

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8.1 Continued_8.2

NOTES

Example 1Find a Function Value

(a). f(5) (b) f(-6)

•Step 1: Write the function.•Step 2: Replace x with the input value.•Step 3: Simplify

Example 2Find a Function Value

Example 3Use Function Notation

Example 3 Continued Use Function Notation

Example 4Use Function Notation

Example 5Use Function Notation

Ms. Newman spent $8.82 buying cards that sold for $0.49 each.

(a)Use function notation to write an equation that gives the total cost as a function of the number of cards purchased

(b)Use the equation to determine the number of cards purchased

Moving On….Section 8.2

Sequences and Equations

Vocabulary•Sequence – An ordered list of numbers

•Term- Each number of the sequence

•Arithmetic Sequence – When the difference between any two consecutive terms is the same

•Common Difference – The name of the difference between the terms

Example 1Describe an Arithmetic Sequence

Example 2Describe an Arithmetic Sequence

Example 3Find a Term in an Arithmetic Sequence

Example 4Find a Term in an Arithmetic Sequence

Example 5 Find a Term in an Arithmetic Sequence

Example 6Find a Term in an Arithmetic Sequence

HomeworkSection 8.1 # 5-8 Section 8.2 #1-9

HomeworkSection 8.1 # 5-8 Section 8.2 #1-9