Question 551165

slope=m= y2-y1=55.9-59.5
         x2-x1=1984-1964

m=-3.6= -0.18
   20 
y-intercept =b=+61

Can someone explain the steps to find +61 .I course understand all that is needed for finding the line of best fit. I just don't know where b=+61 comes into play.
--------------
No idea.  You typed it.