PLS HELP 50 points!!!! Which relation is a function?
O {(-2, 1), (-7, - 1), (2, 8), (-7, – 8)}
O {(-2, 2), (-7, 7), (-1, 1), (-8, 8)}
O {(-2, 1), (-2, 2), (-2, 7), (-2, 8)}
O {(1, -7), (2, – 8), (-2, 7), (1, 8)}

Answers

Answer 1

Answer:

B

Step-by-step explanation:

For a relation to be a function, it must fit the following criteria:

Each input must be matched to exactly one output. Inputs cannot repeat*. Outputs can. *If inputs do repeat, they must be equal the same output as the other inputs.

So, let’s go through each of the choices.

Choice A)

In this relation, -7 repeats. It simultaneously equals -1 and -8. So, this is not a function since it’s repeating and it doesn’t equal to same.

Choice B)

In this relation, none of the inputs are repeating. Therefore, B is the corrrect answer.

Choice C)

In this relation, -2 repeats four times. And each time, it equals something different. Therefore, C is not a function.

Choice D)

Here, 1 repeats twice, equalling both -7 and 8. Since it appeared more than once and is not equal to the same thing, D is not a function.

Therefore, our answer is B.

Edit: Typo


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Answer:

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Step-by-step explanation:

Answer:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:hope that helps :)

=(−4)(3+7m)

=(−4)(3)+(−4)(7m)

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Answer:

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Step-by-step explanation:

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Answers

Answer:

Step-by-step explanation:

P(y) = y³ + 2y² + 2y + 1  

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  Use synthetic division or remainder theorem.

-1        1          2           2           1

           0        -1            -1         -1        

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Answers

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Answers

Answer:

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Step-by-step explanation:

Original Equation:

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Distributive property.

2 x 6p = 12p

2 x p = 2p

Equation:

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Subtract 5p from 12p

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Add.

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Hope this helped :)

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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Answer:   13 units

===========================================

Work Shown:

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Answer:

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Step-by-step explanation:

Dan used the amount of flour each day = 0.68 kg

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The number of grams of flour that was used is 19040 grams.

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