How do you reflect across the y-axis the points F(-5, 1), x(-3, 3), E-1,-1)?

Question

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Answer 1 · 2018-02-28T14:25:11

Change all #x#-coordinates to negative: #(5,1), (3,3), (1,-1)#

Reflecting a point #(x,y)# across the #y#-axis causes you to end up with #(-x,y).#

So,

#(x,y)=(-5,1)#

becomes

#(-x,y)=(5,1)#

#(x,y)=(-3,3)#

becomes

#(-x,y)=(3,3)#

#(x,y)=(-1,-1)#

becomes

#(-x,y)=(1,-1)#