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anonymous
 one year ago
please help :)
For the polynomial, f(x)=12x+5x^4 as x> infinity, f(x) > infinity
true or false?
anonymous
 one year ago
please help :) For the polynomial, f(x)=12x+5x^4 as x> infinity, f(x) > infinity true or false?

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jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1I would suggest plugging in a few values of x and testing it. Try x = 100, x = 1000, and x = 10,000. You should then be able to make a very good guess at the answer. :)

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1Basically, we are making x go toward infinity and we want to see how the formula responds, does it seem to be getting bigger (and heading toward + infinity)? Or does it seem to be getting really big in a negative direction (and heading toward  infinity)?

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1I would agree! The values just keep getting bigger, and Bigger, and BIGGER! And they always stay positive. Even though there is a 2x in our formula the 5x^4 is just too powerful and forces the function to stay positive. Nice work!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thanks for your help!! :)
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