Question

Triangle JKL has vertices J (-7, 4), K (7.1),

and
L (2,-2). Without graphing, find the new
coordiantes of the vertices after a reflection first
over the x-axis and then over the y-axis.

Answer 1

J'(7,-4), K'(-7,-1), L'(-2,2)

Explanation:

reflection over x-axis: (x,y) --> (x,-y)

reflection over y-axis: (x,y) --> (-x,-y)

Because the triangle is reflected x-axis and then y-axis,

all points would be (x,y) --> (-x,-y)