Download Function Project by: Prathmica Chandramohan 5th Period

FUNCTION PROJECT
BY: PRATHMICA
CHANDRAMOHAN
5TH PERIOD
My Real World Question
 Kristin and her four friends went to
the zoo. The ticket costs $15.00, and
the parking fee is $3.00. With this
being said, how much money would
be needed?
The Equation
 The equation is as follows:
X= number of
friends
Y= money
needed
15x+3=y
Independent and Dependent
 The independent variable is the x value.
 The dependent variable is the y value.
 The money needed to go to the zoo(y) depends on the
number friends(x).
Is it a Function?
 This would definitely be a function
because the (x) values don’t
repeat.
Is it Continuous or
Discrete?
 This graph is discrete because it skips
the numbers between the whole
numbers.
Table of Values
x
$15.00x+3
y
(x,y)
1
$15(1)+3
$18
(1,18)
2
$15(2)+3
$33
(2,33)
3
$15(3)+3
$48
(3,48)
4
$15(4)+3
$63
(4,63)
5
$15(5)+3
$78
(5,78)
Domain and Range
 Domain is the x values only
 Range is the y values only
My domain would be{1,2,3,4,5}
My range would be{18,33,48,63,78}
Graphing the Scenario
Y-Values
80
70
60
50
40
Y-Values
30
20
10
0
0
1
2
3
4
5
6
The Answers
The conclusion is that the cost per ticket is
$15.00, so multiply by five because there are
four friends along with Kristin.
 And you don’t want to forget the parking
fee, so with the total($75.00), add $3.00.
Therefore the grand total would be $78.00.
