Peter made custard every weekend. The more times he made custard, the more practice he gained. The time he took to make the same amount of custard every week decreased with practice. The function below shows the number of hours f(x) Peter took to make custard after he had made it x times: f(x) = 2(0.6)ˣ
Which graph best represents the function?
a) Graph of an increasing exponential function going through six tenths on the y-axis
b) Graph of a decreasing exponential function going through one on the y-axis
c) Graph of a decreasing exponential function going through two on the y-axis
d) Graph of an increasing exponential function going through one on the y-axis