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coldgirl [10]
3 years ago
14

What is the reflection image of U across the y-axis?

Mathematics
2 answers:
IgorLugansk [536]3 years ago
3 0
<u><em>Reflection of point U across y-axis = (1, -5)</em></u>

why . . .

reflection across y-axis means to take the negative of the x-value, and since point U has coordinates (-1, -5), the negative of -1 is 1, then the reflected coordinate must be (1, -5)
vaieri [72.5K]3 years ago
3 0

Answer:

B. (1,-5)

Step-by-step explanation:

We have been coordinates of some points on coordinate plane. We are asked to find the reflection image of U across the y-axis.

We know that after reflecting a point across y-axis, the y-coordinate of point remains same, while x-coordinate changes to its opposite sign.

We can see that coordinates of point U are (-1,-5). After the reflection across y-axis the y-coordinate will remain same that is -5, while x-coordinate will be opposite of -1 that is -(-1)=1

Therefore, the coordinates of point U after reflection across y-axis would be (1,-5) and option B is the correct choice.

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i don't understand how to make it into a graphing form? how do you find the center and radius? (I'm confused because it has a 4x
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Answer: \bold{(x-2)^2+(y-3)^2=\dfrac{1}{4}}

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

When both the x² and y² values are equal and positive, the shape is a circle. Complete the square to put the equation in format:

(x-h)² + (y-k)² = r²    where

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1) Group the x's and y's together and move the number to the right side

   4x² - 16x         + 4y² - 24y               = -51        

2) Factor out the 4 from the x² and y²

    4(x² - 4x          ) + 4(y² - 6y            ) = -51

3) Complete the square (divide the x and y value by 2 and square it)

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Answer:

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Step-by-step explanation:

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We have to find the probability that he ends up with a full house (3 cards of one kind, 2 cards of another kind).

We know that gambler will end up with a full house in two different ways (knowing that he has given two more cards);

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