Ml is parallel to the x-axis. therefore, finding y-coordinate of point m or l will determine the equation of line m. to determine coordinates of m, first determine coordinates of r and s. since they are midpoints of ec and ea respectively, r(1, 5) and s(-3, 1). since m is midpoint of rs, the y-coordinate for m is 3. therefore, the equation of ml is y=3.
a. True
b. False