After a reflection of the figure, the image vertices are a'(5, 1), b'(3, –1), and c'(7, –1). what is the line of reflection?
the graph with x-coordinate marks -4, 0, 4 and y-coordinate mark -4, -1, 0, and 4. the triangle abc with coordinates a at (-1, 1), b at (1, -1), c at (-3, -1).
a. y = 2
b. x = 2
c. y = –x
d. y = 2x