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In a function, how many outputs does each input value have?

AAt least two
BNone at all
CMany at once
DExactly one
Answer & Solution
Correct answer: D. Exactly one
1. A function links two variables to each other. 2. Every input variable has one output variable. 3. That single output is what makes the relationship a function rather than just any pairing. _Source: Siyavula Mathematics Grade 10 (Everything Maths, CC BY 4.0), Chapter 6: Functions_
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