FUNCTION PROJECTBY: PRATHMICA CHANDRAMOHAN5TH 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:

15x+3=yX= number of friendsY= money needed

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

0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.50

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Y-Values

Y-Values

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.