{Could someone help with this?} Point A(–4, 2) is reflected over the line x = 3 to create the point A'. What are the coordinates of A'?

A.
(–4, –1)
B.
(–4, 8)
C.
(–1, 2)
D.
(10, 2)

Question

{Could someone help with this?} Point A(–4, 2) is reflected over the line x = 3 to create the point A'. What are the coordinates of A'?

A.
(–4, –1)
B.
(–4, 8)
C.
(–1, 2)
D.
(10, 2)

anonymous · Answer

|dw:1372872960266:dw|

now all you have to do in reflection is plot the point on the other side of the line x=3, at the same distance as it was... 

since the distance on the one side was 7 units.. you just add 2*7 =14 to the x coordinate and the point will automatically go as intended...

ur new point will be (2*7-4,2) = (14-4,2) = (10,2)