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10 questions from this quiz
When a>0a > 0a>0
The y-intercept
x=โb2ax = -\frac{b}{2a}x=โ2abโ
Exactly one
R\mathbb{R}R (all real numbers)
[โ3,โ)[-3, \infty)[โ3,โ)
No x-intercepts
โb2a-\frac{b}{2a}โ2abโ
Makes it steeper (narrower)
000
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