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What can go in, and what can come out?

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What can go in, and what can come out?
Examples and practice

Examples and practice

What can go in, and what can come out?

Practice section 1 · Questions 1–6

Translate all seven interval rows · Substitute a complete input expression · +4 more

Translate all seven interval rows
Substitute a complete input expression
Distinguish a squared input from a squared output
Apply the vertical-line test
Find ranges without losing endpoint conditions
A missing output between two pieces

Practice section 2 · Questions 7–11

Repeat the defining interval without losing endpoints · Three ranges, three endpoint decisions · +3 more

Repeat the defining interval without losing endpoints
Three ranges, three endpoint decisions
A periodic piecewise function
Reduce periodic inputs and sketch a complete finite window
Extend an inverse-cosine piece periodically and solve a threshold