Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

Consider the graph of quadratic trinomial y = ax² + bx + c as shown below where X1 and X2 are roots of equation ax²+bx+c. which of the following is/are correct ? (A) a-b-c 0 (D) b and c have the same sign different from a.

Consider the graph of quadratic trinomial y = ax² + bx + c as shown below where X1 and X2 are roots of equation ax²+bx+c. which of the following is/are correct ?
(A) a-b-c 0 (D) b and c have the same sign different from a. 

Question Image
Grade:12th pass

1 Answers

Harshit Singh
askIITians Faculty 5898 Points
15 days ago
Dear Student

your first part is unclear,please post it in separate thread.

(b) since parabola is downward, a<0
maxima is at Ist quadrant where x is positive,
at maxima or minima , x= -b/2a
since x= +ve and a= -ve, b should be positive
Y intersept is +ve , so c will also be positive
hence
a is negative, b and c are positive

Thanks

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free