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haterofmath
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find the indicated onesided limit. if the limiting value is inifinte indicate whther is is +∞or− ,
lim x→4 (3x−9)
 2 years ago
 2 years ago
haterofmath Group Title
find the indicated onesided limit. if the limiting value is inifinte indicate whther is is +∞or− , lim x→4 (3x−9)
 2 years ago
 2 years ago

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hsmt Group TitleBest ResponseYou've already chosen the best response.0
hi. i have a question. is the limit being taken from the left or right?
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
are you there?
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
well, this is a linear function or a first degree polynomial.
 2 years ago

haterofmath Group TitleBest ResponseYou've already chosen the best response.0
i'm not sure
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
so tell me what the problem is asking, if you would be so kind.
 2 years ago

haterofmath Group TitleBest ResponseYou've already chosen the best response.0
\[\lim_{x \rightarrow 4}(3x^29) \]
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
can you tell me in words, what it is asking?
 2 years ago

haterofmath Group TitleBest ResponseYou've already chosen the best response.0
find the indicated onesided limit. if the limiting value is inifinte, indicate whether it is \[+\infty or \]
 2 years ago

haterofmath Group TitleBest ResponseYou've already chosen the best response.0
infity
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
ok. so they want the limit of 3x^29 as x approaches 4. I see the 4, but is it a left or right hand + limit. My glasses may not be picking up the detail.
 2 years ago

haterofmath Group TitleBest ResponseYou've already chosen the best response.0
right hand
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
ok. perfect. now, what do we know about 3x^29? what kind of a function is it?
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
what is the graph of that function?
 2 years ago

haterofmath Group TitleBest ResponseYou've already chosen the best response.0
i'm not sure...i'm a little confused on the whole topic of limits
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
it is ok. it is a second degree polynomial. i am stating it this way because there is a limit theorem that states that all polynomial functions are continuous and all polynomial functions have equal left and right hand limits at every point in their domain.
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
this function would graph out to be a parabola. Furthermore, unless special domains are part of the problem, you simply substitute the x value into the expression to get the limit.
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
incidentally, polynomial functions are any function that can be written in the form: y=ax^n+bx^(n1)+...+c
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
so, 5x^6+3x^5+4=y is a sixth degree polynomial function. notice the degree and the highest power are the same.
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
ok. the only reason i bring this up is because they tend to throw a lot of these polynomial functions at you in calc classes. now back to the problem at hand. did you substitute 4 for x in the expression?
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
if so, what did you get for a value?
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
that would be the correct answer. nicely done.
 2 years ago

haterofmath Group TitleBest ResponseYou've already chosen the best response.0
ok..thanks...its all starting to make sense now
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
good. do you have any other questions? I am not paid by the hour lol
 2 years ago

haterofmath Group TitleBest ResponseYou've already chosen the best response.0
lol. no not tonight
 2 years ago

hsmt Group TitleBest ResponseYou've already chosen the best response.0
well, then, i hope you have a lovely evening. take care and good nite
 2 years ago

haterofmath Group TitleBest ResponseYou've already chosen the best response.0
thanks and the same to you
 2 years ago

haterofmath Group TitleBest ResponseYou've already chosen the best response.0
what happens if the limit is being taken from the left?
 2 years ago
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