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anonymous
 one year ago
Which of the following is the graph the function f(x) = 3x^3 + 9^2  2x + 3 ?
anonymous
 one year ago
Which of the following is the graph the function f(x) = 3x^3 + 9^2  2x + 3 ?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I think the answer is either A or C, someone please help

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.1Well, if x=0, then all the terms but the last go by by. So 0,3 must be on the graph.

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.1THat alone eliminates everything other than A and D. So all you need to do is pick one other easy test point and you can confirm.

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.1I would try x=1, cause then you do not really need to figure out much, and presto, second y value to check. With many of these types of questions, that is all you need to do. Find x=0 and x=1. It generally eliminates most of the graphs.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how would you do x=1? would you just substitute 1 in for all the x's and then solve it?

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.1Yep. So you just end up with the numbers.

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.1When x=0, every factor with an x dissapears. That is why x=0 is easy. For x=1, the x does not matter and you just add and subtract the constants.

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.1And I am assuming you typoed the 9^2 and it is supposed to be 9x^2.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0it just shows as 9^2 not 9x^2

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.1Hmmm... that is probably a mistake, because NONE of the graphs are for it with 9^2 = 81. But one of them is for it with 9x^2.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yeah, i think it was a mistake. i just checked again and got A as my final answer, is this correct?

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.1Yes. Cause when x=1 it would be 13. If yo look at (0,3) and (1,13) thy would only show up on graph A.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank you so much! :)

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.1np. Have fun, and no you know an easy way to do those. =)
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