Step 1

Tap valid machines

A function machine produces exactly one output for every input.

Model {{ index + 1 }}
1 2 3 A B C
Step 2

Slide to match

Find the input that produces the target output.

Target Output: {{ s2_targetY }}
Input (x)
{{ s2_currentX }}
Output (y)
{{ s2_currentY }}
-50510
Step 3

Drag valid numbers

Find the domain. We can't have a negative number inside a square root!

Root Processor
{{ num.val }}
Step 4

Highlight the domain

Domain is all valid x-values. Drag the handles to cover the graph's width on the x-axis.

0
-6-4-20246
Domain:

Master of Functions!

You've successfully identified functions, evaluated outputs, and determined domains.

{{ dragState.item.val }}