reflection through the line y=x moves
(x,y) -> (y,x)
So, it looks like C with a typo.
I mean, geez, did you try actually plotting a point and seeing what happened if you flipped it over the line y=x?
or maybe googling reflections?
http://www.regentsprep.org/regents/math/geometry/gt1/reflect.htm
the vertices of a triangle are p(-7 -4),q(-7,-8),and r(3,-3).Name the vertices of the image reflected across the line y=x.
help!!
3 answers
The choices are
A. P'(4,7),Q'(8,7),R'(3,-3)
B. P'(4,-7),Q'(8-7),R'(3,3)
C. P'(4-7),Q'(-8,-7),R(-3,3)
D. P'(-4,7),Q'(-8,7),R'(-3,-3)
but I think its "c"
A. P'(4,7),Q'(8,7),R'(3,-3)
B. P'(4,-7),Q'(8-7),R'(3,3)
C. P'(4-7),Q'(-8,-7),R(-3,3)
D. P'(-4,7),Q'(-8,7),R'(-3,-3)
but I think its "c"
The answer is C. Just took the test.