Find the measures of angle 1 and angle2

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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.

Aline passes through 3,7 and 6,9 what equation represents the line

What’s the answer ? use the picture to see the problem