Q. 4

If the grap

Answer :

Given: Quadratic polynomial ax2 + bx + x cuts the positive direction of y–axis.


To Find: Sign of c


Explanation:


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.


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