7. DESIGN Fiona is using graphic design software to make stickers. To create the
final shape of her design, she combines the image and preimage of a triangle.
She graphs the triangle on a coordinate plane with vertices at P(0, 4), Q(2, 8), and
R(-3, 6). Then she draws a reflection of the triangle, and the vertices of the image
are at P'(0, 4), Q'(-2, 8), and R'(3, 6). Draw the preimage and image of the triangle
and describe the transformation.