Answer:
To know the y values in of both the tables I have
y=2.25x.
To get the equation y=2.25x, I need to get the value of y divide by the value of x, repeat this process for both of the tables. You can see that they are all proportional to each other.
For the first table we have:
360÷160=2.25, 1125÷500=2.25, 2700÷1200=2.25
In order to form a equation they all have to have the same proportion.
Then, there you have it.
y=2.25x
For the second table we have:
4.5÷2=2.25, 11.25÷5=2.25, 15.75=2.25
y=2.25x
to check if the equation is right
y=2.25(160)=360 (for the first table)
y=2.25(500)=1125
y=2.25(1200)=2700