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Nikolay [14]
3 years ago
9

What is the image point of (2, 1) after the transformation ry-axis o R180°?

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
3 0

9514 1404 393

Answer:

  P"(2, -1)

Step-by-step explanation:

Reflection in the y-axis is described by ...

  (x, y) ⇒ (-x, y)

Then your reflected point is ...

  P(2, 1) ⇒ P'(-2, 1)

__

Rotation 180° about the origin is described by ...

  (x, y) ⇒ (-x, -y)

When the reflected point is then rotated 180° about the origin, it becomes ...

  P'(-2, 1) ⇒ P"(2, -1) . . . . reflected and rotated point

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