Plz trapezoid w′x′y′z′ is the image of trapezoid wxyz under a dilation through point c. what scale factor was used in the dilation? a) -7/3 b) −3/7 c) 3/7 d) 7/3

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?