14% of 980?
15 is what percent of 50?
38% of $785?
78 is 20% of what number?
99 1/2% of 6,000?
12 1/5% of $25,000?
12 is 75% of what number?
30 is what % of 20?
1 1/4% of 20,000?

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?