$$ y=-\frac{2}{3}(x-4)(x+5) $$ key features direction of opening $$ y $$-intercept $$ x $$-intercepts coordinate of vertex equation of axis of symmetry Domain Range Transformations: is this a function

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The parabola opens downward, with a $$ y $$-intercept at $$ \left(0, \frac{40}{3}\right) $$, $$ x $$-intercepts at $$ (4, 0) $$ and $$ (-5, 0) $$, vertex at $$ \left(-\frac{1}{2}, -\frac{27}{2}\right) $$, axis of symmetry at $$ x = -\frac{1}{2} $$, domain $$ (-\infty, \infty) $$, range $$ \left(-\infty, -\frac{27}{2}\right] $$, and transformations including a vertical stretch by $$ \frac{2}{3} $$, reflection, and horizontal shifts. It is a function.

\( y=-\frac{2}{3}(x-4)(x+5) \) key features direction of opening \( y \)-intercept \( x \)-intercepts coordinate of vertex equation of axis of symmetry Domain Range Transformations: is this a function

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\( y=-\frac{2}{3}(x-4)(x+5) \) key features direction of opening \( y \)-intercept \( x \)-intercepts coordinate of vertex equation of axis of symmetry Domain Range Transformations: is this a function

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