Question 256368
Complete the square.
{{{f(x)=4x^2 -12x +5}}}
{{{f(x)=4(x^2-3x)+5}}}
{{{f(x)=4(x^2-3x+(9/4))+5-4(9/4)}}}
{{{f(x)=4(x-(3/2))^2-4}}}
{{{ graph( 300, 300, -5, 5, -5, 5, 4x^2 -12x +5,4(x-(3/2))^2-4) }}}
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x=3/2 is the axis of symmetry.