Please Help Me:)
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.

P'(4, 7), Q'(8, 7), R'(3, –3)
P'(4, –7), Q'(8, –7), R'(3, 3)
P'(–4, –7), Q'(–8, –7), R'(–3, 3)
P'(–4, 7), Q'(–8, 7), R'(–3, –3)

Question

Please Help Me:)
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.  

    P'(4, 7), Q'(8, 7), R'(3, –3)
    P'(4, –7), Q'(8, –7), R'(3, 3)
    P'(–4, –7), Q'(–8, –7), R'(–3, 3)
    P'(–4, 7), Q'(–8, 7), R'(–3, –3)

zpupster · Answer

( x, y) is the ordered pair
so when  y = x  x =y 
so just reverse the ordered pairs

P(-7, -4) then P' (-4,-7) and so on

anonymous · Answer

Oh! I thought so. Thanks for the reassurance:)