Answer:
C( 3, 0) ; D( 7, 1) ; E(2, 4)
Explanation:
If it is reflected over the y axis, then:
Simply put, you will multiply all your x coordinates by -1 or the x-y coordinates on the left side of the y axis will move to the right side of the y axis.
C( 3, 0) ; D( 7, 1) ; E(2, 4)