Arby's age is 6 years less than 7 times anna's age. if anna's age is x years, which expression best shows arby's age?
x
7x − 6
x − 1
6x − 7

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?