SOLUTION: f(x)=3x(2x-1). f(-1)= My answer 7. Is this right. thanks for looking.

Algebra.Com
Question 45138This question is from textbook Finite math
: f(x)=3x(2x-1). f(-1)= My answer 7. Is this right. thanks for looking. This question is from textbook Finite math

Answer by rapaljer(4671)   (Show Source): You can put this solution on YOUR website!
f(x) = 3x(2x-1). To find f(-1), substitute -1 for each x:
f(-1) = -3(-2-1)=-3*-3 = 9.

R^2 at SCC

RELATED QUESTIONS

Find the quotient and remainder of f(x)= x^3-4x^2+5x+5 divided by p(x) = x-1. My answer... (answered by stanbon)
For f(x)= 1 divided by x^2-2x-8, find the interval(s) where f(x)<0. My answer is after... (answered by adamchapman)
Determine the f(x) = mx + b, given two points of the linear function. thanks :) (1,4), (answered by Fombitz)
Did I do this correctly? Thanks for looking at this. Evaluate f(x)= 2x+1 for... (answered by stanbon)
I would just like for someone to check if my answers are right.. It says, " find the... (answered by Alan3354)
For the function defined by f(x)= 2-x^2, 0 less or equal than x, use a sketch to help... (answered by stanbon)
For the function defined by f(x)=5x-4, find a formula for f^-1(x). This one I tried many (answered by OHtutor,Nate)
Did i do this right? g(x)=f(x-1) They give me x= -1 and solve for g(x). I did this:... (answered by jim_thompson5910)
im looking for the answer to f(g(x)) and g(f(x)), when f(x)=10x+1 and g(x)=sqrt... (answered by stanbon)