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Vlad [161]
3 years ago
11

Please help !!! I need help with all.

Mathematics
2 answers:
alexira [117]3 years ago
7 0

5 is not a function because if you draw a vertical line then it touches twice which is not a function

6 is a function

7 is not a function because there are 2 of the same inputs

8 is a function because it passes the vertical line test

9 is not a function

10 is a function

Hopefully that helped!


MArishka [77]3 years ago
6 0
I do know that 6 is a function but 7 isn’t
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Hi there!

\large\boxed{(5,8) \text{ and } (1.2, -2.78)}}

We are given the equation:

x² - 2y = 7

To verify if each ordered pair is apart of the function, we can plug in their respective x and y values:

1. (5)² - 2(8) = 7

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2. (-1)² - 2(-3) = 7

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3. (-4)² - 2(-11.5) = 7

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What is the estimate of 215% of 18.
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215% of 18
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