Solve this problem showing all your work - If f(t) = 2t² - 4t - 1, then find f(2)?

Question

Solve this problem showing all your work - If f(t) = 2t² - 4t - 1, then find f(2)?

Answer 1

im not sure , since f = t then t = 2 therefore its

= 2 (2)²  - 4(2) - 1

= 8 - 8 - 1

= - 1

Good luck!

Answer 2

you should put 2 in place of t and solve ..the answer is =  -1

Answer 3

simply plug in the '2'

so that would be:

f(t) = 2t² - 4t - 1

f(2) = 2(2^2) - 4(2) - 1

f(2) = 2(4) - 8 - 1

f(2) = 8 - 8 - 1

f(2) = -1

Answer 4

f(2) simply means to substitute 2 in place of the variable t.  So

f(2) = 2(2^2) - 4(2) -1 = 8 - 8 - 1 = -1