The dot plot shows how much hairdressers in Margot's area charge for a woman's haircut. The least expensive cut is $25. Margot d
escribed the data as having a spread from $25 to $47, seven gaps, a cluster from $35 to $37, and a center of $37. Where did Margot make an error? Price of a Woman's Haircut (in dollars) The spread is from $25 to $46. There are 11 gaps. The cluster is from $36 to $37. The center is at $36
The sequence of numbers decrease by 6 each time, so we can write: f(1) = 5 f(2) = -1 f(3) = -7 f(1) - f(2) = 6 or: f(2) = f(1) - 6 which means: f(n + 1) = f(n) - 6
