What is the average rate of change for f (x) = -3^x+ 1 over the interval -2 -1? A)-1/9
B)-2/9
C)1/9
D)2/9

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )