SOLUTION: If someone could just give me an example as to how I can solve the below? Am I suppose to enter 1,2,4,8 and 16 for x on each one? Just a detailed example of one or a few of these w

Question 70530: If someone could just give me an example as to how I can solve the below? Am I suppose to enter 1,2,4,8 and 16 for x on each one? Just a detailed example of one or a few of these would help me so much. Just something to get me started.

"Evaluate each of the functions below at x = 1, 2, 4, 8, and 16. Plot the graph of each function. Classify each as linear, quadratic, polynomial, exponential, or logarithmic, and explain the reasons for your classifications. Compare how quickly each function increases, based on the evaluations and graphs, and rank the functions from fastest to slowest growing."
f(x) = x^3 - 3x^2 - 2^x + 1
f(x) = e^x
f(x) = 3x - 2
f(x) = log x
f(x) = x^2 - 5x + 6

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Yes, substitute the number, like x=2, in place of the x, as follows:
-----------
f(x) = x^3 - 3x^2 - 2^x + 1
f(2)=2^3 - 3*2^2 -2^2 +1
=8 - 12 - 4 +1
=-7
The function is the sum of a and an exponential.
----------
f(x) = e^x
f(2) = e^2 = 7.389056...
The function is exponential because the "x" is in the exponent.
----------------------
f(x) = 3x - 2
f(2) = 3*2 -2 = 4
The function is linear ; it is a polynominal
------------------
f(x) = log x
f(2) = log 2 = 0.030102999...
The function is logrithmic
------------------
f(x) = x^2 - 5x + 6
f(2) = 2^2 -5*2 +6 = 4 -10 +6= 0
The function is quadratic; it is a polynomial
-----------
Cheers,
Stan H.

RELATED QUESTIONS
Could someone show me how to put these problems on paper not just the answers because... (answered by solver91311)

I am having some trouble answering these question. Could someone kindly help me. 1.... (answered by tutorcecilia)

I was wondering if someone could give me a proof that I could use for an example? I have... (answered by richard1234)

Can someone show me how to work the following problem and graph it? I am trying to... (answered by stanbon,solver91311)

Please help me to solve this question: 9 + ? x 3/8 = 15 I tried to work out what ?... (answered by MathTherapy)

Thanks so much for all your help . After see the problem solve i try to work on them to... (answered by stanbon)

how do i solve the equation on interval [0,2pi) 8 cos ^ 2 -4 = 0 I've been stuck on (answered by ewatrrr)

I need help!!! I am suppose to describe a strategy for factoring a polynomial and give... (answered by jim_thompson5910)