Answer:
if we extend the regression line and the x-axis as given in the following image the
(v)regression line =y=mx+b=10x+125
since the regression line touches x-axis at -10 so b=10 and it touches y-axis at 125 so m=125
(vi) for x=1, y=10*1+125=135
(vii) for x=12, y=10*12+125=245,
actual value of y=225
Step-by-step explanation: