For the Data $(0,10),(1,20),(2,30),(3,40),(4,60),(5,80)$ , Where the First Number in Parenthesis Is

Multiple Choice

For the data $(0,10) ,(1,20) ,(2,30) ,(3,40) ,(4,60) ,(5,80)$ , where the first number in parenthesis is $t$ and the second number is the actual demand, if we fit a trend line of the form $y t=a+b t$ , then the trend line forecast for period 8 will be

A) 140
B) 115.39
C) 59.39
D) 128.0
E) 110.0