Question

Determine which consecutive integers do NOT have a real zero of f(x)=x^3-9x^2+23x-14.
a. (4,5)
b. (-1,0)
c. (3,4)
d. (0,1)

Answer 1

c

Answer 2

I'd probably test the pair, using the "remainder theorem"

Answer 3

what would i be dividing the equation by??

Answer 4

You have to plug in each x value one at a time.

eg: (4,5) first plug x=4 into x^3-9x^2+23x-14

then plug x=5 into x^3-9x^2+23x-14

if the result from x=4 is positive, and the result from x=5 is negative (or the first is negative and the second is positive) there's a zero in there somewhere.

Answer 5

im glad you know how to copy and paste from other posts alyssa lmfao

Answer 6

@chlobohoe I figured it would help you?? you asked the question no need to be rude.

Answer 7

LOL says the one who first called me a 'bi/tch'. if i needed help i could already find i wouldnt resort to this website.

Answer 8

@chlobohoe you don't have to be a "bi/tch' i was only trying to help. you could @ me next time if wanna continue to get smart.

Answer 9

hahaha wow hun youre getting so salty. if i wanted to '@' trash id call the garbage can. thanks for nothing tho dont expect any call in the future