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Question

 If $$a < 0$$, then function $$f(x)=ax^2+bx+c$$ has


A
minimum value.
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B
constant value.
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C
maximum value.
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D
positive value.
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Solution

The correct option is D maximum value.
When $$a<0$$ , $$f(x)$$ has maximum value because as we increase the value of $$x$$ the value of $$f(x)$$ keeps on decreasing as shown
791347_601515_ans_16c39b454a8e459abdd8880b12eafed7.png

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