Question

reflect triangle abc over the line x= -1 and then translate (x+2,y-5) determine the coordinates of B'​

Answer 1

below

Explanation:

You didn't show the triangle, but we suppose the coordinate of B is (x,y)

when it reflect over the line x=-1, (x , y) - > (- (x - (-1)) , y) ==> (- (x+1) , y)

then translate (x+2,y-5) : (-(x+1) , y) -> - (-(x+1)+2 , y-5) ==> (-x+1 , y-5)

such as (5,3) -> (-6,3) -> (-4 , -2)