Question 177181
If:
{{{f(t) = 2t^2-4t-1}}} find f(2): You simply substitute 2 for every t in the equation and evaluate.
{{{f(2) = 2(2)^2-4(2)-1}}}
{{{f(2) = 2(4)-8-1}}}
{{{f(2) = 8-8-1}}}
{{{highlight(f(2) = -1)}}}