Use the question to identify a and b

Determine whether the angles in each given pair are coterminal. 744°, -336°

7x+8y=-18, 4x-9y=-3 solve the system of equations

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?