Linear Functions Unit
#4
Day 4 HW
Name ____________________________
Period _________ Due Date ________
Functional Behavior
Directions: Express the given function using the indicated method
Function Notation
Graph
f ( x)  3x  4
A. f (2)
B. f (0)
C. f ( 1)
D. f (1)
Table
Mapping Diagram
Domain
x
y
Range
Directions: Express the given function using the indicated method
Function Notation
Graph
k ( x)  2 x  5
A. k (1)
B. k (4)
C. k (1)
1
D. k  
2
Table
Mapping Diagram
Domain
x
y
Range
3. Megan is planning to make dinner for a group of friends. She wants to make
each person a personal pizza. It takes Megan 3 minutes to prepare a personal pizza
with toppings. The function P(x) = 3(f) represents the time it takes to prepare the
pizzas, where f is the number friends attending her diner party. To cook the pizzas,
it will take Megan 30 minutes regardless of how many friends attend. The function
C(f) = 30 represents the time to cook the pizzas.
What operation is needed to create a
function that determines how long it
will take Megan to prepare and cook
the pizzas?
What is the total time to prepare and
cook the pizzas if 12 friends attend the
party?
Find the function that represents the
total time to cook and prepare the
pizzas?