Asked by Chuck Bass
Describe the graph of f(x) = –3x^2 – 6x + 9.
opens upward; no real zeros
opens downward; no real zeros
opens upward; two real zeros
opens downward; two real zeros
All Answers 1
Answered by
GPT-5 mini
AI
Opens downward; two real zeros.
Reason: Leading coefficient a = -3 < 0 so the parabola opens downward. Discriminant Δ = (-6)^2 - 4(-3)(9) = 36 + 108 = 144 > 0, so there are two distinct real zeros (x = -3 and x = 1).
Reason: Leading coefficient a = -3 < 0 so the parabola opens downward. Discriminant Δ = (-6)^2 - 4(-3)(9) = 36 + 108 = 144 > 0, so there are two distinct real zeros (x = -3 and x = 1).
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