What is the slope of line represents by the equation y=-1/2x+1/4

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?

5/6+7/8what is the answer sealsdbdbshd

What is the value of x in the this question ?