Asked by Rodney Copperbottom
(Question) the coordinates of the vertices of △CDE are C(1,4), D(3,6), and E(7,4). if the triangle is reflected over the line y=3, what are the coordinates of the image of D?
(Question) what is the image of A(3,-1) after a reflection, first across the line y=3, and the across the line x=-1?
(Question) what is the image of A(3,-1) after a reflection, first across the line y=3, and the across the line x=-1?
Answers
Answered by
oobleck
(x,y)→(x,6-y)
so plug and chug
(x,y)→(-2-x,6-y)
play around with a few points on graph paper to see how this works
so plug and chug
(x,y)→(-2-x,6-y)
play around with a few points on graph paper to see how this works
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