This graph shows a trapezoid on the coordinate plane. 104 9 -10-9-8-7-6-5-4-3-2-1 87 65 432 - 1 4234 2 56 X 1 2 3 4 5 6 7 8 9 10 7 8 9 10 Write the equation of a line so that a reflection across the line maps the trapezoid onto itself.​