Download Aim #49: How do we represent situations in function notation? (Unit

Aim #49: How do we represent situations in
function notation?
(Unit 5 - Functions)
HW #49: Finish Classwork
Do Now:
Use the graph below to answer each question.
a) What is the domain?
b) What is the range?
c) What is f(2)?
d) If f(x) = 1, what are all possible
values of x?
e) The function is increasing from x = _____ to x = _____.
f) The function is decreasing from x = _____ to x = _____
and from x = _____ to x = _____.
12-12-16
Representing Situations using a Function Rule
Ex. #1: A cab company charges a flat fee of $4 for a trip
and $2 for each mile or part of a mile.
Step 1: Define variable.
Step 2: Write an equation in function notation.
Step 3: Use the equation to solve for:
a) cost of a 20-mile trip:
b) cost of a 10.25 mile trip:
Ex. #2: The cost of renting a video is $3.25 for the first
day, and $1.50 for each extra day.
a) Write an equation in function notation to
represent the total cost.
b) What is the cost of renting a video for 5 days?
Unit 5 Quiz on Wednesday! (Aims #44-49)
Attachments
Sets Worksheet #2.doc
Naming properties worksheet.doc