C' = (- 2, - 5 )
The line y = - 1 is a horizontal line passing through all the points with a y- coordinate of - 1
C= (- 2 , 3 ) and is 4 units vertically above y = -1 → (3 - (- 1))
The reflection will therefore be 4 units below y = - 1
- 1 - 4 = - 5 ← y-coordinate
The x- coordinate remains unchanged, thus
C' = (- 2, - 5 )
