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10 questions from this quiz
When a>0a > 0a>0
The y-intercept
x=−b2ax = -\frac{b}{2a}x=−2ab
Exactly one
R\mathbb{R}R (all real numbers)
[−3,∞)[-3, \infty)[−3,∞)
No x-intercepts
−b2a-\frac{b}{2a}−2ab
Makes it steeper (narrower)
000
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