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10 questions from this quiz
a≠0a \neq 0a=0
Standard form ax2+bx+cax^2 + bx + cax2+bx+c
Vertex at (h,k)(h, k)(h,k)
X-intercepts at x1x_1x1 and x2x_2x2
x=−b2ax = -\frac{b}{2a}x=−2ab
When a<0a < 0a<0 (opens downward)
[k,∞)[k, \infty)[k,∞)
Time values are non-negative
When income equals cost (profit = 0)
x=10x = 10x=10
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