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Mathematics 7 Online
OpenStudy (sonyalee77):

What is the resulting ordered pair if the value of the independent variable is –3? http://media.education2020.com/evresources/2003-08-02-00-00_files/i0300000.jpg

OpenStudy (sonyalee77):

@superdavesuper

OpenStudy (superdavesuper):

independent variable in the case is f(x) so f(x)=-3....now u need to solve for x...

OpenStudy (sonyalee77):

17,-3?

OpenStudy (superdavesuper):

Nope...putting -3 into the eqn -2x^3-4x^2-1=-3 ok?

OpenStudy (sonyalee77):

ummm.....ill try

OpenStudy (superdavesuper):

Re-arrange so the terms w x are all on the left n the constants are on the right....then group them...

OpenStudy (sonyalee77):

-3,17?

OpenStudy (superdavesuper):

plz dont try to solve it....take 1 step at a time ok? :)

OpenStudy (sonyalee77):

k.... ummm... -2x^3-4x^2-1=-3 64-16=-2?

OpenStudy (superdavesuper):

-2x^3-4x^2-1=-3 -2x^3-4x^2=-3+1 -2(x^3+2x^2)=-2 following me so far?

OpenStudy (sonyalee77):

yup

OpenStudy (superdavesuper):

Are u sure? Can u go on from here? do it ONE step at a time plz

OpenStudy (superdavesuper):

next step is divided both left and right by -2...

OpenStudy (sonyalee77):

im so sorry im being time but i dnt get it..

OpenStudy (superdavesuper):

No need to be sorry....work w me here plz? we will go through it step by step. so divide the left and right by -2 plz?

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