What is the easiest way to learn division and multipaction

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.

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180

Which graph represents the equation y =4x