What word describes a set of ordered pairs?
Relation
Find the DOMAIN:
{(-2, 4), (3, 2), (2, 10)}
{-2, 3, 2}
Is this a function?
Not a Function
What does a flat interval on a graph represent? (ex: measuring speed over time)
Constant values
f(-3) if f(x) = 2x +1
-5
What is the set of all inputs of a function called?
Domain
Find the RANGE:
{(-2, 8), (3, -1), (2, 5)}
{-1, 5, 8}
Function or not?
{(0, -2), (4, -1), (-2, 5), (3, -1), (8, -2)}
Yes, function
What type of function is graphed as distinct points?
Discrete
f(10) if f(x) = 3x2 - 5
What is 295?
The dependent variable in your equation is what?
( Input, Output, Rule, function)
Output
What's the Domain?
All Real Numbers
Is this a function?
Function
How can you tell from a graph if it shows a function or not?
The Vertical Line Test!
Write an equation for the function: {(-2, -8), (2, -4), (5, -1)}
y=x-6
The independent variable in your equation is what?
( Input, Output, Rule, function)
Input
What's the Range?

y > 0
Function or Not?
Function
Graph the change in distance from home over time: A person leaves home, drives to the other end of town and buys groceries, then returns home.
I'll show ya in person
Identify Independent/Dependent Variables: Meg earns a $5 flat fee plus $4.50 per student for a tutoring session
Independent: # of students
Dependent: total money/earnings
What are the four ways we've seen relations represented? (MUST HAVE ALL 4)
What's the Domain?

-3 < y < 2
Function or not?
Not a Function
Write a situation to match the graph: SHOW GRAPH PIC THAT I COULDN'T ADD HERE 'CUZ I DIDN'T WANNA PAY FOR THIS SITE LIKE A REAL PERSON
Answers will vary
Write a function in function notation to describe the total cost: A fitness class is being offered. The registration fee is $8.50 and the cost for each class is $4.75
f(c)=4.75c+8.50