SOLUTION: I had to solve a function with a rule of f(x)=2t^2+1 for f(-3). I got the question wrong because I didn't know what "t" was, but I'm curious to know the answer.

Algebra ->  Functions -> SOLUTION: I had to solve a function with a rule of f(x)=2t^2+1 for f(-3). I got the question wrong because I didn't know what "t" was, but I'm curious to know the answer.      Log On


   

Question 1147527: I had to solve a function with a rule of f(x)=2t^2+1 for f(-3). I got the question wrong because I didn't know what "t" was, but I'm curious to know the answer.
Found 2 solutions by ikleyn, greenestamps:
Answer by ikleyn(52751) About Me  (Show Source):
You can put this solution on YOUR website!
.

Substitute -3 instead of t into the formula and calculate.


Happy calculations (!)


Answer by greenestamps(13195) About Me  (Show Source):
You can put this solution on YOUR website!


... Of course, if what you show is REALLY what you were asked to do, then there is not much to do to answer the question.

The question asks you to find f(-3) if f(x) is 2t^2+1.

Obviously that means evaluate the expression when you replace x with -3.

But there is no x is the function you show....

So the answer to the question AS YOU SHOW IT is

f(-3) = 2t^2+1

... which in the end makes no sense