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podryga [215]
3 years ago
11

Determine if it’s a function or not

Mathematics
1 answer:
cluponka [151]3 years ago
4 0

Answer:

C is not a function but D is

Step-by-step explanation:

For one input, you can only have one output for this to be a function. For table C, the input of 4 has 4 different outputs, so it cannot be a function.

D is a function however, because each input has only one output, even if the output is the same number.

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Answer:

Therefore the answer is 20.

Step-by-step explanation:

We know that

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But here number of classes is not given , so we use the formula

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Rounding up to a convinient number

Thus , class intervai = 20

Therefore the answer is 20.

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