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Mathematics 10 Online
OpenStudy (anonymous):

Find all real zeros of the function f(x)=12. Also I need help with finding all real zeros of the function y=-3x+9.

OpenStudy (anonymous):

how long have you been waiting? ^.^

OpenStudy (anonymous):

I have been working on this problem for near half an hour.

OpenStudy (anonymous):

well let's see

OpenStudy (anonymous):

you know what 'zero of a function' means?

OpenStudy (anonymous):

ZEROS OF THE FUNCTION F Zeros of the function f are the values of x which makes a function f(x) equal 0. A zero may be real or complex.

OpenStudy (anonymous):

i was just about to say that... so tell me is f(x) = 12 ever going to be equal to zero? ^.^

OpenStudy (anonymous):

I don't know, I would have to say no.

OpenStudy (anonymous):

it's never going to be equal to zero because it's always 12. that's just the way things are for f(x) = 12. What about the next one?

OpenStudy (anonymous):

f(x) = -3x + 9 when is this equal to zero? -3x + 9 = 0

OpenStudy (anonymous):

i think it's a simple matter of solving for x ^.^

OpenStudy (anonymous):

So it would be x=-3?

OpenStudy (anonymous):

try it ^.6 -3(-3) + 9 9 + 9 18 zero? I don't think so. try it again ^.^

OpenStudy (anonymous):

Alright. Positive 3 then?

OpenStudy (anonymous):

try it again :) -3(3) + 9 -9 + 9 0 that sure looks like zero to me ^.^

OpenStudy (anonymous):

So that's my answer?

OpenStudy (anonymous):

Is +3 a zero?

OpenStudy (anonymous):

of the function -3x + 9?

OpenStudy (anonymous):

Well it equaled to 0 when plugged in?

OpenStudy (anonymous):

then what do you think? IS it your answer? ^.^

OpenStudy (anonymous):

Yes, I think so. I have another question though.

OpenStudy (anonymous):

of the function -3x + 9?

OpenStudy (anonymous):

then what do you think? IS it your answer? ^.^

OpenStudy (anonymous):

How is the slope of a linear function related to the number of zeros for the function?

OpenStudy (anonymous):

I think it is the answer.

OpenStudy (anonymous):

okay great :P

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