Common-Core/ Grade 8
Maths MCQ Based On Find the coordinates rotations
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Common-Core Grade 8 - 8 Find the coordinates rotations
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New x-coordinate = (old x-coordinate) * cos(angle) - (old y-coordinate) * sin(angle) New y-coordinate = (old x-coordinate) * sin(angle) + (old y-coordinate) * cos(angle)
The given coordinates are positive.
New x-coordinate = (old x-coordinate) * cos(angle) - (old y-coordinate) * sin(angle) New y-coordinate = (old x-coordinate) * sin(angle) + (old y-coordinate) * cos(angle)
New x-coordinate = (old x-coordinate) * cos(angle) - (old y-coordinate) * sin(angle) New y-coordinate = (old x-coordinate) * sin(angle) + (old y-coordinate) * cos(angle)
Identify the quadrant of point Z
New x-coordinate = (old x-coordinate) * cos(angle) - (old y-coordinate) * sin(angle) New y-coordinate = (old x-coordinate) * sin(angle) + (old y-coordinate) * cos(angle)
270° anticlockwise is the same as 90° clockwise.
New x-coordinate = (old x-coordinate) * cos(angle) - (old y-coordinate) * sin(angle) New y-coordinate = (old x-coordinate) * sin(angle) + (old y-coordinate) * cos(angle)
Identify the quadrant of the given coordinates
New x-coordinate = (old x-coordinate) * cos(angle) - (old y-coordinate) * sin(angle) New y-coordinate = (old x-coordinate) * sin(angle) + (old y-coordinate) * cos(angle)
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