Question 92935
If f(x) = 3x(2x-1), find f(-1)
To do this, you just substitute -1 into the given function where ever there is an x.
f(-1) = 3(-1)(2(-1)-1) Evaluate the right side.
f(-1) = -3(-2-1)
f(-1) = -3(-3)
f(-1) = 9...and there you have it!