9/6/13 Review Domain&Range and Function Notation

Post date: Sep 6, 2013 8:50:30 PM

Domain and Range Notes:

• What can go into a Funcation is called domain

• What comes out of a fucntion is called Range

Example:

Give the domain and range in interval notation

The graph extends horizontally from x = −5 to x = 4. Because there are closed dots on these endpoints (instead of open dots), x = − 5 and x = 4 are part of the domain, too. The domain is [−5, 4]. The graph extends vertically from y = −4 to y = 3. The range is [−4, 3].

Function Notation Notes:

Example:

Given that f(x)=4x-2, Find f(2), f(3), f(-2)

f(2)=4(2)-2=6

f(3)=4(3)-2=10

f(-2)=4(-2)-2=-10

Homework:

Formal Set #1 due Next Tuesday, 9/10

Diagnostic Test on Monday, 9/9