Area and perimeter please help me get the correct answer and I will give you Brainlist

Triangle xyz has vertices x(1,3), y(0,0)

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?

Find the value of x for which line a is parallel to line b