Perpendicular lines have slopes that are flipped and have the opposite sign.
True or false

If a =6, what is the value of 2a(3b + 5c)?

Answer this question only if you know the answer! 30 points and

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?