Difference between revisions of "2015 AMC 10B Problems/Problem 8"
(Created page with "==Problem== The letter F shown below is rotated <math>90^\circ</math> clockwise around the origin, then reflected in the <math>y</math>-axis, and then rotated a half turn aro...") |
(No difference)
|
Revision as of 18:24, 4 March 2015
Problem
The letter F shown below is rotated clockwise around the origin, then reflected in the -axis, and then rotated a half turn around the origin. What is the final image?
Solution
The first rotation moves the base of the to the negative -axis, and the stem to the positive -axis. The reflection then moves the stem to the negative -axis, with the base unchanged. Then the half turn moves the stem to the positive axis and the base to the positive -axis, choice .