y=−2x2−12x−15

how to graph it
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1 Answer

me assume thats spozed tu be

y=-(2x^2 +12x+15)

=-(x+0.69406)(x+10.805937... kross x-axis at x=-0.6940629 & -10.8059371

=parabola that go down

dy/dx=-4x-12=0 at x=-3...tangent horizontal=top av parabola

top point=(-3,+3)
by

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