What's a Function (Intro to Domain and Range) 4

Try this box:

THE RULE: Square it!
(You figure out the outputs.)

input: 4 -> rule: ( )^2 -> output: __ ... input: -3 -> rule: ( )^2 -> output: __ ... (be careful!)

input: 0 -> rule: ( )^2 -> output: __ ... input: square root of 7 -> rule: ( )^2 -> output: __

What's the domain? ________________

What's the range? ________________

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What's a Function (Intro to Domain and Range)