Question

Find the vertex of the following quadratic equation and plot the graph:
$y=x^2-6x+4$.

Answer 1

$y=x^2-6x+4,a=1,b=-6,c=4$

vertex: $x=-\frac{b}{2a}=-\frac{(-6)}{2\times 1}=3$

At $x=3,y=-5;$ at $x=0,y=4;andatx=6,y=4$