a taxi ride cost a flat fee of 4.00 plus an additional 1.25 per mile how many mile would a person travel if they paid 19.00

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?

Rounded to the nearest tenth, what is the value of x

What is the slope of the line that passes through the points (–9, 2) and (0, 4)? the slope of the line is