51. . For any quadraticpolynomial ax^2 + bx + C, a 0, the graph of the
corresponding equation y = ax^2 + bx + c has shape open up wards parabola like
"U" then the value of a will be a
number
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Parabolas
The graph of a quadratic equation in two variables (y = ax2 + bx + c ) is called ... If a > 0 ( positive) then the parabola opens upward. ... So the y-intercept of any parabola is always at (0,c).
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