Numbo the maths kitten
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Maths with Numbo
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Relations and Functions
4
questions
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Choose the best answer
1
If f(x) = x + 5, what is f(2)?
🔊
A
7
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B
10
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2
If f(x) = 3x, what is f(4)?
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A
12
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B
7
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3
In a function, how many codomain elements can each domain element be paired with?
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A
Exactly one
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B
More than one
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4
Do the pairs {(1,2), (1,3)} form a function?
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A
No, it is not a function
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B
Yes, it is a function
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