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Practice problem

What Is the Domain of a Function?

By Alex Federspiel
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Red: y = x + 1 from -3 to 0. Purple: y = -sqrt(x + 4) from -4 to 0. Blue: y = x^2 from -2 to 2. Green: y = |x-2| from -1 to 4.

Which line has the domain −1≤x≤4-1\le x\le4?

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Type a concept, like “slope” or “photosynthesis”.

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