The Linear Model for Long-Term Trend Is $y = \beta _ { 0 } + \beta _ { 1 } t + \varepsilon$

Multiple Choice

The linear model for long-term trend is $y = \beta _ { 0 } + \beta _ { 1 } t + \varepsilon$ , where t is the time period. The trend is indicated by:

A) $$\beta _ { 0 }$$ .
B) $$\beta _ { 1 }$$ .
C) $$y$$ .
D) $$t$$ .