hello friends plz solve this...?

Question

Q: A straight mine passes through the points A(0,3), B(3,12).The line x=3 is the axis of symmetry of triangle ABC.Find the coordinates of C.

Answer 1

C(3,6) The line of symmetry divides the triangles into two equal parts.... draw the line from A to B and then the line of symmetry... draw a line exactly the same as AB mirrowed across the line of symmetry, and then connect the two lines.... You will get the point C which is (3,6)

Answer 2

C is -3, 6