Question 1203122
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The level of the questions on the test show that it is a test for rather young students.  In that case, probably the answers provided in the response from the other tutor can be considered valid.<br>
Note, however, that technically the problem as shown is invalid; the answers that are apparently expected assume that the horizontal and vertical dotted lines are in fact horizontal and vertical, and that the diagonal dotted line passes through the origin.  But the information provided on the test does not tell us those things....<br>