Ifeel really dumb, but aren't two of the answers functions? the one i picked and the one below it

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

A50% increase followed by 33 1/2% decrease

Which expression and diagram represent “renee biked four times as far this month as last month”?