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Discriminant = b^2 - 4acAs a>0 , b<0 and c<0D > 0 , Hence we have two roots. So it could be A or B.Now, the product of the roots = c/aProduct is negative. Hence, one root is positive and one is negative. Hence, the answer is (B)ThanksBharat BajajIIT Delhiaskiitians faculty
x^2-2px+8p-15let roots are a, bcase 1: one root is between (0,1) and another root is greater than 2ab=8p-15 >=0 imply p>15/8a+b=2p >2 imply p>1p belongs (1,inf)case 2: one root is less than <0 and another root is greater than 2ab=8p-15<0 imply p<15/8a+b=2p <2 imply <1(-inf, 15/8)hence d is the correct answersher mohammadb.tech, iit delhi
Since a>0, the graph is upward facing. Also f(0) <0. Hence (B) is correct
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