Please help. I've been working on this problem for more than 2 hours. Thank you. three support beams for a bridge form a pair of complementary angles. Find the measure of each angle.

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?