Is this relation a function? (-1,2) (1,17) (3,-4) (1,20)

Mathematics

1 answer:

RSB [31]2 years ago

4 0

No. The x value 1 has two y value 17 and 20. To be a function, each x value must have only one unique y value

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V125BC [204]

Answer:

its A i just took the test

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3 years ago

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The correlation between height and weight among men age 18-74 in the U.S. is about 0.40. Say whether each conclusion below follo

zzz [600]

Answer:

Options a, b, c are correct.

Step-by-step explanation:

First let's see the equation that governs the statement, which is the following:

$r = \frac{cov (x, y)}{\sqrt{var(x) var (y)} }$

Therefore, reading options a, b, c are correct.

Since from the formula we have the correlation coefficient of two variables x and y and here it shows us the correlation between x, y and y, x is the same.

This means that the 0.4 correlation implies a moderate but positive relationship between the two variables.

that is, the highest or lowest value of one variable implies a highest or lowest value of the other variable, respectively.

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3 years ago

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xenn [34]

Answer:

we can help you but do you have corona if yes im soory hope you feel better

Step-by-step explanation:

3 0

2 years ago

Please help!

Nuetrik [128]

Hello there! The formula for finding slope is y2 - y1 / x2 - x1, meaning you subtract the first x and y-coordinates, from the second x and y-coordinates. In this case, the formula would be set up as -2 - 5 / 2 -1, because (2, -2) is the second point and (1, 5) is the first point. The answer is C: 2 - 1.

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3 years ago

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Kylie explained that (–4x + 9)2 will result in a difference of squares because (–4x + 9)2 = (–4x)2 + (9)2 = 16x2 + 81. Which sta

Serjik [45]

The correct product should have been:
<span>(–4x + 9)2 = </span>(-4x)2 + 2(-4x)(9) + 9^2 = 16x6 - 72x +81
The result is a trinomial and not a binomial nor a difference of two squares.

So, the answer is:
C = Kylie did not understand that this is a perfect square trinomial, and she did not determine the product correctly.

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3 years ago

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Is this relation a function? (-1,2) (1,17) (3,-4) (1,20)​

Is this relation a function? (-1,2) (1,17) (3,-4) (1,20)