SOLUTION: having problems with this equation:
If f(t) = 2t^2 - 4t - 1, find
f(2)
then find f(-1)
can someone explain this to me :(
Algebra.Com
Question 90076: having problems with this equation:
If f(t) = 2t^2 - 4t - 1, find
f(2)
then find f(-1)
can someone explain this to me :(
Found 2 solutions by stanbon, Earlsdon:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
f(t) = 2t^2 - 4t - 1, find
f(2)
then find f(-1)
---------------
Substitute 2 in place of "t" to get:
f(2) = 2(2^2) - 4*2 -1
f(2) = 8 -8 -1
f(2) = 1
--------------------
Substitute -1 in place of "t" to get:
f(-1) = 2(-1)^2 -4*-1 -1
f(-1) = 2*1 +4 -1
f(-1) = 2 + 4 -1
f(-1) = 5
----------------------
Cheers,
stan H>
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
If , find: f(2) the f(-1)
To do these problems, just substitute t = 2 to find f(2) and then t = -1 to find f(-1).
Simplify.
...and
Simplify.
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