Which equation of the line passes through the points (2, −1) and (4, 7)

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.

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why

How do i do this activity, is appreciated