1) Find the slope (-2,0) (1,5)

2) A line that goes through (1,4) (-5,r) has a slope of 1/3, Find the r

1)

Slope = (y2-y1)/(x2-x1) = (5-0)/(1-(-2)) = 5/3

2)

Slope = (r-4)/(-5-1) = (r-4)/(-6) =1/3

3(r-4) =(-6)*1 = -6

3r-12 = -6

3r =-6+12 =6

r =5/3 =2

Answer : r =2

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