Let $f(x)=a x^2+b x+c, a \neq 0$ Suppose, $f(-1) -1$ and $f(3) < -4$. Then,

JEE MATHEMATICS MCQ: QUADRATIC EQUATIONS

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Analyzing +4 | -1

Let

f(x)=a x^2+b x+c, a \neq 0

Suppose,

f(-1) < 1

f(1) > -1

and

f(3) < -4

. Then,

View answer and explanation

Correct option: B

b+1 > 0

Option C (

b+1 < 0

) is incorrect. Option B (

b+1 > 0

) is correct because from the given inequalities, we can derive that

b+1 > 0

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a

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