The cafeteria manager took a survey of the third grade students and found that 83 of 127 students said they did not want hot dog
s on Wednesdays. There are 900 students at the school. What is a good prediction of the number of students who do not want hot dogs on Wednesday?
A 288
B 388
C 488
D 588
PLEASE SHOW YOUR WORK
A 288
B 388
C 488
D 588
PLEASE SHOW YOUR WORK
2 answers:
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Answer:
y=x, x-axis, y=x, y-axis
Explanation:
Reflecting the figure across three axes just moves it from one quadrant to another. It does not map the figure to itself.
Reflecting across the line y=x moves it from quadrant II to IV or vice-versa. If it is in quadrant I or III, it stays there. So the sequence of reflections x-axis (moves from I to IV), y=x (moves from IV to II), x-axis (moves from II to III), y=x (stays in III) will not map the figure to itself.
However, the last selection will map the figure to itself. The initial (and final) figure location, and the intermediate reflections are shown in the attached. The figure starts and ends as blue, is reflected across y=x to green, across x-axis to orange, across y=x to red, and finally across y-axis to blue again.
