In the Quadratic Regression Model Y = $\beta$ ₀ $\beta$ ₁X

Multiple Choice

In the quadratic regression model y = $\beta$
₀ + $\beta$
₁X + $\beta$
₂ X² + $\varepsilon$
,if the term $\beta$
2 is ______ zero,then the parabola opens __________.

A) less than,upward
B) greater than,upward
C) greater than,either upward or downward
D) less than,either upward or downward
E) equal to,downward