RD Sharma - Mathematics

Book: RD Sharma - Mathematics

Chapter: 2. Polynomials

Subject: Maths - Class 10th

Q. No. 40 of CCE - Formative Assessment

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40

If graph of quadratic polynomial ax2 + bx + c cuts positive direction of y-axis, then what is the sign of c?

Positive

If quadratic polynomial ax2 + bx + c cuts positive direction of y-axis, then it means that the value of y is positive when x = 0 [ at y-axis, x = 0]


Now


y = c at x = 0 and y is positive.


So, c is positive.


Chapter Exercises

More Exercise Questions

8

The sum and product of the zeros of a quadratic polynomial are and — 3 respectively. What is the quadratic polynomial?