When the quadratic regression model y = $\beta$
0+ $\beta$
1x + $\beta$
2x²+ ? is used,the term $\beta$
1 shows the rate of curvature of the parabola.

Question

When the quadratic regression model y = $\beta$ 0+ $\beta$ 1x + $\beta$ 2x²+ ? is used,the term $\beta$ 1 shows the rate of curvature of the parabola.

Quizplus · Accepted Answer

The term $\beta_2$ in the quadratic regression model $y = \beta_0 + \beta_1x + \beta_2x^2$ shows the rate of curvature of the parabola, not $\beta_1$. $\beta_1$ represents the linear component of the model.

When the Quadratic Regression Model Y = β\betaβ 0 β\betaβ 1x β\betaβ

When the Quadratic Regression Model Y = $\beta$ 0 $\beta$ 1x $\beta$