Given n= 8 ∑ x = 1377 ∑ x2 = 98945 ∑ y = 1578 ∑ y2 = 126756 ∑ xy = 110579

What is the slope of the regression line?

a
50.73
b
159.45
c
104.96
d
204.25

Which equation could represent the relationship shown in the scatter plot? y=−3x−2 y=−3/4x+10 y=−2/3x+1 y=9x−12 scatter plot with x axis labeled variable x and y axis labeled variable y. points go from upper left to lower right.