Selena walks from home to school each morning and back home each afternoon altogether she walks to 3/2miles each day how far is selena live from school

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.

How do i do this activity, is appreciated

Ithink i know it but i want to be sure so can you me out ?