If f(x)=3x23x+2\displaystyle {f{{\left({x}\right)}}}={3}{x}^{{2}}-{3}{x}+{2}, find f(2)\displaystyle {f}'{\left({2}\right)}.  

Use this to find the linear approximation to f(x)\displaystyle {f{{\left({x}\right)}}} at x=2\displaystyle {x}={2}.

The equation of this linear approximation is

L(x)=\displaystyle {L}{\left({x}\right)}=  

Use L(x)\displaystyle {L}{\left({x}\right)} to approximate f(2.3)\displaystyle {f{{\left({2.3}\right)}}}. (Compute the actual value of L(2.3)\displaystyle {L}{\left({2.3}\right)}.)


f(2.3)\displaystyle {f{{\left({2.3}\right)}}}\approx

Compare this with the actual value of f(2.3)=\displaystyle {f{{\left({2.3}\right)}}}=