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2 years ago

When reflecting a figure across the x-axis, why does the y-value always change signs?

Mathematics

1 answer:

kati45 [8]2 years ago

7 0

Answer:

see description

Step-by-step explanation:

When you reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is transformed into its opposite (its sign is changed). Notice that B is 5 horizontal units to the right of the y-axis, and B' is 5 horizontal units to the left of the y-axis.

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Tems11 [23]

Answer:

Step-by-step explanation:

$ 86,000 lies in the category $84201 - $ 160725

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Amount over $84,200= 86,000 - 84,200 = $1,800

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3 years ago

A square has vertices at the points A(-4,-4), B(-5,-4), C(-5,-3), and D(-4,-3). What is the area of this square? A. 1 square uni

laiz [17]

Answer:

Step-by-step explanation:

The length of AB = 1 unit.

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3 years ago

Ms. Huynh spent $640 to stay in a hotel for four nights. Each night she spent x dollars on the hotel room as well as a $15 parki

andrey2020 [161]

Answer:

175 a night

Step-by-step explanation:

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3 years ago

Read 2 more answers

If x=6 , y=8 , and z=3<br><br> 2x+3y-z<br><br> Is the answer 33?

Oduvanchick [21]

Yes.
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3y = 24
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12 + 24 - 3 = 33

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3 years ago

6. Solve the problem. A carousel has a radius of 18 feet and takes 31

Darya [45]

Answer:

v = 3.64 ft/s

Step-by-step explanation:

Given that,

Radius of a carousel, r = 18 feet

It takes 31 seconds to complete revolution.

We need to find the linear speed of the carousel at its outside edge. Distance covered is equal to the circumference of the circle.

d = 2πr

d = 2π × 18 = 113.09 feet

Let v is the linear speed. It can be given by :

$v=\dfrac{D}{t}\\\\v=\dfrac{113.09}{31}\\\\v=3.64\ ft/s$

So, the linear speed of the carousel is 3.64 ft/s.

7 0

2 years ago