FUNction Project ;D

By: Mallory Kreidler

REAL WORLD PROBLEM:D

Sue is buying her and two friends Ice Pops. If the ice pops cost $5 a piece. How much will she spend on the Ice Pops?

The Equation The equation is: Y=5x or f(x)=5x

x= the number of ice pops

Y= the total amount

Independent and Dependent• The is my x

which is the number of ice pops sold.

• The Dependent Variable is my y which is total amount of money.

• We know that y Depends on x.• So the total amount of money

Depends on the # of ice pops.

Independent Variable

x 5x y (x,y)

1 5(1) 5 (1,5)

2 5(2) 10 (2,10)

3 5(3) 15 (3,15)

4 5(4) 20 (4,20)

5 5(5) 25 (5,25)

Table of Values

Domain and Range

Domain is the x values.Range is the y values.So my Domain is D:

{1,2,3,4,5}And my Range is R:

{5,10,15,20,25}

R ADOMAIN G E

Is it Continuous or Discrete?

• Since my data contains only points and NOT a line, then it is a discrete graph.

• You can not purchase 1.5 ice pops, you can only purchase the ice pops by 1, 2, 3.

Is it a Function? • A Function is when the x values DO NOT

repeat.• So, Yes it is a Function the x’s do not repeat.

Ice pop graph<3

0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.50

5

10

15

20

25

30

0 1 2 3 4 5

25

20

15

10

5

0

Tota

l am

ount

of m

oney

Total number of ice pops

So…The answer is…

• The answer depends on how many ice pops she buys. She can spend between $5-$25 (without tax).