Question

In Q. No. 14, write the sign of c.

Answer 1

The parabola  `y = ax^2 + bx + c` cuts y-axis at point P which lies on y-axis. Putting  x=0 in  `y= ax^2 + bx + c`, we get y = c. So the coordinates of P are `(0,c)`. Clearly, P lies on OY. Therefore  `c > 0`

Hence, the sign of c is  c > 0