Question

A student performed the composition rx ro.90 on
figure A. Evaluate the student’s completion of the composition.





A.


The student performed the composition correctly.




B.


The student reflected across the x-axis first rather than rotating the figure 90° counterclockwise.




C.


The student rotated the figure 90° clockwise rather than 90° counterclockwise.




D.


The student reflected across the y-axis rather than the x-axis.

Answer 1

The order of transformations (whatever they are) is supposed to be
\(\normalsize\color{blue}{ \rm BLUE }\) \(\normalsize\color{black}{ \rm ⇒ }\) \(\normalsize\color{red}{ \rm RED }\)
\(\normalsize\color{red}{ \rm RED }\) \(\normalsize\color{black}{ \rm ⇒ }\) \(\normalsize\color{green}{ \rm GREEN }\)

Answer 2

What do you think is being done to the blue figure to change it to the red, and then what do you think is being done to the red figure to change it to the green figure ?

Answer 3

a reflection over the x axis then a rotation 90 degrees, so the student would be right?