Transformations Practice Quiz

Question 1

Rotate point $A(3,-2)$ by $90^\circ$ counterclockwise about the origin. What are the new coordinates?

Accepted Answer

$(2,3)$

Answer

$(-3,2)$

Answer

$(-2,-3)$

Answer

$(3,2)$

Question 2

Which rule correctly describes a $90^\circ$ clockwise rotation about the origin?

Accepted Answer

$(x,y)	o(y,-x)$

Answer

$(x,y)	o(-y,x)$

Answer

$(x,y)	o(x,-y)$

Answer

$(x,y)	o(-x,-y)$

Question 3

A point $U(x,y)$ is transformed by the sequence: rotate $270^\circ$ counterclockwise about the origin, then dilate by factor $-2$ about the origin. What is the final coordinate rule?

Accepted Answer

$(x,y)	o(-2y,2x)$

Answer

$(x,y)	o(2x,2y)$

Answer

$(x,y)	o(-2x,-2y)$

Answer

$(x,y)	o(2y,-2x)$

Transformations Practice Quiz

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