Answer:
The graph in the attached figure
see the explanation
Step-by-step explanation:
Let
x -----> the number of bottles
y ----> the total cost of the water
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form [tex]y/x=k[/tex] or [tex]y=kx[/tex]
This problem represent a direct (proportional) variation
so
For x=1, y=$1.50
[tex]k=y/x[/tex] -----> [tex]k=1.50/1=1.50[/tex]
The linear equation is equal to
[tex]y=1.50x[/tex]
Find the ordered pairs
First
(1,1.50)
Second
For x=2
Find the value of y
Substitute in the equation
y=1.50(2)=3
The point is (2,3.00)
Third
For x=3
Find the value of y
Substitute in the equation
y=1.50(3)=4.50
The point is (3,4.50)
Fourth
For x=4
Find the value of y
Substitute in the equation
y=1.50(4)=6.00
The point is (4,6.00)
The four ordered pairs are
(1,1.50), (2,3.00),(3,4.50) and (4,6.00)
using a graphing tool
plot the points
