Answer:
range °° heights - lowest = 22-12 = 10
mean °° average number = sum of all numbers÷ number of digits = 173÷ 11 =15.727
1/5
Step-by-step explanation:
pick any points, for example (6, -1) and (11, 0)
slope is m= (y2-y1) / (x2-x1) = -1-0 / 6-11 = -1 / -5 = 1/5