SOMEONE PLSS HELP I REALLY NEED THIS I'LL GIVE BRAILIEST!! SHOW WORK PLS ONLY NUMBER 5 AND 7 THANKK UU

Which equation represents a proportional relationship that has a constant of proportionality equal to 1/5

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 can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation