For which of the following quadratic polynomials does the graph NOT intersect the –axis?

MATHEMATICS · Single correct · AoPS · Mathematics · Quadratic Equations - Part 1 · Quadratic Equations - Part 1

Problem

For which of the following quadratic polynomials does the graph NOT intersect the

x

–axis? (a)

x^{2}-5x+6

(b)

x^{2}-4x+4

(c)

x^{2}+4x+5

(d)

x^{2}+3x+2