• Last week – Defining Functions (Lesson 1)• This week – Evaluating Functions (Lesson 2)

TODAY!!!! January 21st – Semester 1 Closes

Housekeeping

• Formatives – 20% of overall grade– IXL skills– Journal Activities–Lesson Practice Work–Lesson quizzes–etc

• Summatives – 80% of overall grade–These are the “tests” at the end of the unit

Grades

Grade Scale

Note: All grades from the first semester will be converted to the equivalent letter grade.

Unit 1: Lesson 2Evaluating Functions

Evaluating FunctionsEvaluating a function is similar to evaluating an expression

To evaluate a function, replace the variable with a given number.

Important Rules to remember:

Exponents – Squaring a negativeAdding and Subtracting IntegersOrder of Operations

Order of OperationsUse the following function rule to find f(4).

f(x) =

Now you try!Use the following function rule to find f(3).

f(x) =

Absolute ValueUse the following function rule to find f(-5).

f(x) =

RadicalsUse the following function rule to find g(7).

g(x) =

Wrap Up