Question

Graph of quadratic Polynomial ax^2 + bx +c is Parabola open upward if 'a' is greater than what?
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Answer 1

Answer:

a must be greater than 0

Answer 2

Graph of quadratic Polynomial ax^2 + bx +c is Parabola open upward if 'a' is greater than

$\underline{\pink{\: zero.} }$

and

Graph of quadratic Polynomial ax^2 + bx +c is Parabola open downward if 'a' is less than

$\underline{\pink{\: zero.} }$

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