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3 years ago

What set of Reflections and rotations could carry ABCD onto itself?

Mathematics

2 answers:

Nitella [24]3 years ago

6 0

Reflect over y-axis,reflect over the X axis ,rotate 180°

Option D is the correct option.

Explanation:

Let's take point A which is (4,-1)

Reflection over y- axis will make this point (4,1)

Then, reflection over X axis will make this point (4,-1)

After rotation of 180 degree we will get (-4,1) .

Please see the attached picture....

Hope it helps...

Good luck on your assignment...

AURORKA [14]3 years ago

4 0

Answer: d) reflect over the x-axis, reflect over y-axis, rotate 180°

Step-by-step explanation:

A reflection over the x-axis and a reflection over the y-axis is the SAME as a rotation of 180°. Together they make a rotation of 360°, which results in the image staying at the same place.

Reflection over the x-axis changes the sign of the y-coordinate

Z = (x, y) → Z' = (x, -y)

Reflection over the y-axis changes the sign of the x-coordinate

Z' = (x, -y) → Z'' = (-x, -y)

Rotation of 180° changes the signs of both the x- and y-coordinates

Z'' = (-x, -y) → Z''' = (x, y)

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Peter leaves his house and walks 15 meters south, then turns east and walks another 15 meters. How far is he from his house? Rou

Varvara68 [4.7K]

When Peter does this, he is creating two sides of a right-angle triangle. The distance from his house to that point will be the hypotenuse of the triangle thus, to work out the length of the hypotenuse, we have to use Pythagoras Theorem! So:

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3 years ago

Select all the correct answers.

irina1246 [14]

Operations that can be applied to a matrix in the process of Gauss Jordan elimination are :

replacing the row with twice that row

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swapping rows

Step-by-step explanation:

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The elimentary row(or column) operations that can be used are:

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as is done in replacing a row with sum of that row and another row.

3. Multiply any row (or column) entirely by a non zero scalar as is done in replacing the row with twice the row, here scalar used = 2

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olga2289 [7]

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

What set of Reflections and rotations could carry ABCD onto itself?​

What set of Reflections and rotations could carry ABCD onto itself?