Rule: The value of y is equal to the value of x divided by 9. Equation: y=x Ă· 9 Table:
x
0
9
18
27
36
y
0
1
2
3
4
Practice makes perfect
Let's find the pattern that describes the relation between the dependent variable y and the independent variable x. Note that if we divide the value of x by 9 we get the value of y. We can include this information in the given table.
x
0
9
18
27
36
Pattern
0 Ă· 9
9 Ă· 9
18 Ă· 9
y
0
1
2
Now we want to write an equation to describe this relationship.
the value ofxdivided by 9=the value ofy
x Ă· 9=y
y=x Ă· 9
We can use this equation to calculate the missing values. Let's decide the value for y when x is 27 and 36.
y= 27÷ 9 → y= 3
y= 36÷ 9 → y= 4
Finally, we complete the table.
