Posted by allison on .
I have a couple of questions that I'm not sure how to do!
1) Given f(x) = (x^2  2x + 1) for x does not equal 1 and (k) for x = 1
Determine the value of k for which f is continuous for all real x.
a) 0
b) 1
c)2
d)3
e)none of the above
i think the anser is a but i'm really not sure how to solve this.
2) The graph of y = sinx / x has
I. a vertical asymptote at x=0
II. a horizontal asymptote at y=0
III. an infinite number of zeros
a) I only
b) II only
c) III only
d) I and II only
e) II and III only
I think the answer is d but I'm not positive.
If someone could please help me that would be greatly appreciated! :)

calculus 
Reiny,
you are right on #2
as x gets larger, you are dividing by an increasingly larger number, so the result goes to zero
also sin(x) fluctuates between +1 and 1 so crosses the xaxis again and again.
#1 ?
are you sure you typed the function correctly?
The way you have it, it is simply a parabola, which would be continuous for every x.
Where does the k come in?
The question is quite confusing. 
calculus 
Hillary,
Haha I know! I did type it in right... It really is confusing because I don't have a clue what to do with the k!
But thank you for your help on question #2!! :)