Answer B''=(1;4)
Solutions:
• Given the coordinates of point B = (x;y) =(-1;-4)
• reflect over the ,x -axis, (x;y) →(x;-y) , then ,B' = ( -1;4)
,
• reflect B'(-1;4) over the ,y -axis, (x;y) →(-x;y) , the,, B''= ( 1;4)
the graph below will show the B'' reflected over the y -axis