With a function machine, we have:
Yes! It looks just like this.
Let's watch a video to see how it works and how it can go in reverse as well.
A function machine uses three special terms:
Look at this function machine.
$2$2 |
$+$+$1$1 |
? | ||
In the case above, what is the output of the function machine?
If the input was changed to $7$7, what would the new output of the function machine be?
Look at this function machine.
$5$5 |
? |
$7$7 | ||
What is the operation of this function machine?
$2$2
$7$7
$+$+$5$5
$+$+$2$2
$-$−$2$2
$\times$×$2$2
We can reverse the direction of a function machine.
$5$5 |
? |
$7$7 | ||
Now $7$7 is the input and $5$5 is the output.
What is the operation of this function machine now?
$\times$×$2$2
$-$−$2$2
$5$5
$2$2
$+$+$2$2
$-$−$7$7
Look at this function machine.
? |
$+$+$5$5 |
$12$12 | ||
In the case above, what is the input of the function machine?
If the output was changed to $11$11, what would the new input of this function machine be?