We're in a hot air balloon, going up to fly
The table shows our time and height in the sky
At one minute we're three meters off the ground
At two minutes we're six meters up, staring down
At three minutes we're up nine meters high
What's the rule that shows our place in the sky
If we multiply any input by three
We'll get the output, so that's the rule, you see
In goes four, out comes twelve
In goes five, out comes fifteen, swell
In goes six, out comes eighteen
The rule is times three, and the view is pristine
What's happening between the in and the out
We can always find out without any doubt
Make an educated guess and test it out
Til' you find what the rule is all about
I had a function machine, the best one ever seen
I put in a nine, and out came a three
I put in fifteen, and out came five
And twenty-seven went in, and out came nine
There's only one thing I want to know at this junction
What on earth is my machine's function
If you divide any input by three, you'll get the output
So that's the rule, you see
In goes six, out comes two for sure
In goes twelve, and you know out will come four
This input-output table has a rule
It's divide by three
Man, that's pretty cool
What's happening between the in and the out
We can always find out without any doubt
Make an educated guess and test it out
Til' you find what the rule is all about
When there are two sets of values
And they share a mathematical relationship, there's a functions there
And we can use our mind, a mathematical tool
To describe the relationship called a rule
What's happening between the in and the out
We can always find out without any doubt
Make an educated guess and test it out
Til' you find what the rule is all about
What's happening between the in and the out
We can always find out without any doubt
Make an educated guess and test it out
Til' you find what the rule is all about