2 years ago

Is the relation below a function?

Mathematics

1 answer:

Svetlanka [38]2 years ago

3 0

Answer:

not a function

Step-by-step explanation:

the ratios of y/x are not equal

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Nady [450]

Answer: b) -0.625

<u>Step-by-step explanation:</u>

The formula for the z-score is:

$z=\dfrac{x-\mu}{\sigma}\\\\\bullet z \text{ is the z-score}\\\bullet x \text{ is the value}\\\bullet \mu \text{ is the mean}\\\bullet \sigma \text{ is the standard deviation}\\\\z=\dfrac{6-8}{3.2}\\\\\\.\ =\dfrac{-2}{3.2}\\\\\\.\ =\large\boxed{-.0625}$