Katie S. answered • 10/15/20
Tutor
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Knowledgeable, Patient, and Encouraging Certified Math Teacher
Hi, Isabella!
When reflecting over the line y=x, what happens is that the x and y values flip. The rule is (x,y) ——> (y,x)
Examples: (4,-5) ——> (-5,4)
(-2, -1) ———> ( -1,-2)
So your example (-1,7) ————> (7, ?)
I hope this helps you finish the problem. Have a good day!
Mrs. S.
