Question 181709
4x^2-4x+1=0---->discriminant is{{{(-4)^2-4(4)(1)=0}}} which tells us there is only one root. In othe words the vertex is on the x axis
:
{{{4(x^2-x+1/4)=0}}}
:
{{{4(x-1/2)(x-1/2)=0}}}
:
there is only one root...x=1/2
:
{{{graph(300,300,-10,10,-10,10,4x^2-4x+1)}}}