What is an equation of a line passing through the given point

I believe it is y=mx+by equals slope times x plus the y intercept...or y=-8/3x+4.that would mean your slope would be negative. meaning it would go from the left top hand corner and fall through to the bottom right hand corner.

The answer is true. The linear regression analysis necessitates all variables to be multivariate normal.  This supposition can best be checked with a histogram.  Normality can be checked with a goodness of fit test.  When the data is not normally distributed a non-linear transformation can answer this issue.