The answer to Q1 along with an explanation is shown in the picture; Having a look at all the questions, they are all essentially the same type so can all be solved similarly; So by following the method and explanation, you should be able to do the rest of the questions.
Step-by-step explanation: The rule for reflection y=x is (x,y)>( y,x) So when relecting over the axis y=x the x cordinate and the y cordinate switch places.
