A triangle has corners at #(2, -5 )#, ( 6 , 1)#, and #( 1 , -2)#. What will the new coordinates of the triangle be if it is reflected across the x-axis?
1 Answer
May 12, 2016
(2 ,5) , (6 ,-1) , (1 ,2)
Explanation:
When a point (x ,y) is reflected across the x-axis then.
#color(red)(|bar(ul(color(white)(a/a)color(black)( (x ,y) → (x ,-y))color(white)(a/a)|)))# Applying this to each of the 3 corners gives.
(2 ,-5) → (2 ,5)
(6 ,1) → (6 ,-1)
(1 ,-2) → (1 ,2)
