Which of the following is not the graph of a quadratic polynomial?

graphs OF quadratic polynomial

Graph of Quadratic Polynomial

which one of the following can best represent the graph of quadratic polynomial y=ax^(2)+bx+c (where a 0)?

If a,b,c in R, then for which of the following graphs of the quadratic polynomial y = ax ^(2) -2bx+ c (a ne 0), the product (abc) is negative ?

If a,b,c in R, then for which of the following graphs of the quadratic polynomial y = ax ^(2) -2bx+ c (a ne 0), the product (abc) is negative ?

Which of the following polynomials are quadratic polynomials ?

Which of the following condition is correct for the graph of a quadratic polynomial p(x) = ax^(2) + bx + c to be an upward parabola?

Observe the following graphs. Which of them are the graphs of quadratic polynomials?