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Plotting Graph of Quadratic Equation

For any quadr...

Question

For any quadratic equation $y = a x^{2} + b x + c .$ Select the possible graphs for which $a > 0.$

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Solution

The correct option is D
For any function $y = a x^{2} + b x + c$
The graph will be an upward opening parabola for $a > 0$ and will be a downward openeing parabola for $a < 0$
Thus, from the graphs as shown in the options only gaphs shown in $a . & b .$ will have $a > 0.$

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y = a x^{2} + b x + c,

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a > 0 & D = 0,

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