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Welcome to Algebra I!

Mr. Keith Jenkins

Room 222

(check your schedule)

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Vocabulary

• Function: • Range:• Domain:• Decreasing function:• Increasing function:• Dependent variable:• Independent variable:

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Vocabulary cont.

• Relation:• Discrete:• Linear function:

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Vocabulary

• Function: a relation that uniquely associates members of one set with members of another set.

• Range:The area of variation between upper and lower limits on a particular scale.

• Domain: the set of all possible input values which allows the function formula to work.

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Vocabulary Defined• Decreasing function: function where the y

value decreases as the x value increases• Increasing function: function where the y

value increases as the x value increases• Dependent variable: a variable in a function

whose valued is determined by the values assumed by other variables in the relation

• Independent variable: a variable in a function whose value determines the value or values of other variables

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Vocabulary Defined cont.• Relation: relationship between sets of

information or numbers• Linear function: a first degree polynomial of

one variable. Huh?

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By the Sea Handout

• Follow directions carefully• What does the shape represent?• Work problems 1-5 individually• Work problems 6-11 in groups of 3. (each

person must do work.)