Question

point M(6.8) was rotated counterclockwise to M'(-8,6). Describe the degrees of the rotation and write an algebraic rule to represent the rotation

Answer 1

The point is rotated 90° counterclockwise. The algebraic rule for rotation of 90° counterclockwise is (x, y)→(-y, x) .

Rotation of a graph is a transformation where the graph is rotated about a fixed point.

• Rotations can happen both clockwise and counterclockwise.

• To put the graph back in its original position, turn it 360 degrees.

• The rotated figure's side length is unchanged by rotation.

• When a polygon is rotated about a fixed point, the modified figure is equal to the original figure.

The given point is M(6,8) . The figure is rotated counterclockwise to get the image M'(-8,6).

Now we have to calculate the degree of rotation of the point.

M(6,8) lies in the first quadrant and M'(-8,6) lies in the second quadrant.

Therefore the rotation is less than 180° .

Now from the figure attached below we can say that the figure was rotated 90°

To learn more about rotation visit:

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