SOLUTION: the problem I have is f(t)=2t^2-4t-1 and it asks tosolve the problem if f(2). Can some one show me how this works

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: the problem I have is f(t)=2t^2-4t-1 and it asks tosolve the problem if f(2). Can some one show me how this works      Log On


   

Question 177181: the problem I have is f(t)=2t^2-4t-1 and it asks tosolve the problem if f(2). Can some one show me how this works
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
If:
f%28t%29+=+2t%5E2-4t-1 find f(2): You simply substitute 2 for every t in the equation and evaluate.
f%282%29+=+2%282%29%5E2-4%282%29-1
f%282%29+=+2%284%29-8-1
f%282%29+=+8-8-1
highlight%28f%282%29+=+-1%29