Use the image to answer the question.
An illustration shows a coordinate plane. The x-axis and the y-axis range from negative 1 to 6 in one unit increments. Four points are plotted. The points are connected to form a quadrilateral. Point A is plotted at the coordinates left parenthesis 3 comma 6 right parenthesis, Point B is plotted at left parenthesis 3 comma 2 right parenthesis, point C is plotted at left parenthesis 6 comma 2 right parenthesis, and point D is plotted at left parenthesis 5 comma 6 right parenthesis. Points A and B, points B and C, points C and D, and points D and A are connected by line segments to form quadrilateral A B C D.
The shape is reflected over the y-axis. What are the coordinates of the point D′?