find f(a), if f(t) = 2t2(squared)-t-2

Which answer would you choose if you replace all the "t" on the right hand side of the function definition by "a"?

I'm not sure, A??

or C?

Yes, it's C.

Change all the t's to a's in
f(t) = 2t2(squared)-t-2
you get
f(a) = 2a2(squared)-a-2

ahh thanks!

To find f(a), we substitute the variable t in the function f(t) = 2t^2 - t - 2 with the value a.

So, we replace every occurrence of t with a in the function:

f(a) = 2(a)^2 - (a) - 2
= 2a^2 - a - 2

Therefore, the answer is C. 2a^2 - a - 2.