WAEC - Mathematics (2005 - No. 38)

What is the equation of the curve?

\(y=x^2+6x+4\)

\(y=x^2-5x-4\)

\(y=x^2-5x+4\)

\(y=x^2+5x-4\)

The factor for the curve are (x-1)(x-4). The product off the curves gives \(=x^2-5x+4=y\)