The equation y = mx + c is satisfied when x=-1, y = 3, and also when x = 2, y=5
Find the values of m and c.

Aregression was run to determine if there is a relationship between hours of tv watched per day (x) and number of situps a person can do (y). the results of the regression were: y=ax+b a=-0.662 b=30.418 r2=0.703921 r=-0.839

Which is the correct excel formula for the 80th percentile of a distribution that is n(475, 33)? =norm.dist(80,475,33,1) =norm.inv(0.80,475,33) =norm.s.inv((80-475)/33)?

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b