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#### If f(x) = ax^{2}+ bx + c such that f(p) + f(q) = 0 where a0 ; p , qR then number of real roots of equation f(x) = 0in interval [p, q] is

- Exactly one
- at leas tone
- at most one
- data provided is insufficient

#### The correct answer is: Exactly one

#### f(p)=–f(q) eitherf(p)f(q)<0 or f(p) =0=f(q)

exactlyonerootin(p,q) orrootsarepandq

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