Question

Point A(2,-4) is reflected in origin as A and B (-5, 2) is reflected in x-
axise as B' calculate the distance A'B'.


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Answer 1

A( 2 , - 4 ) so, A'( -2 , 4 )

B( -5 , 2 ) so, B'( 5 , -2 )

Distance² = ( -2 - 5)² + ( 4 + 2 )²

Distance² = 49 + 36

Distance² = 85

Distance = √ 85