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Mathematics 16 Online
OpenStudy (anonymous):

how do you solve: f(x)= x^-4/x^-1

OpenStudy (anonymous):

close. but I mean x squared minus 4/ x squared minus 1

OpenStudy (ash2326):

Sorry \[ \frac{x^{-4}}{x^{-1}}\] tia what is \[\frac{1}{x^{-1}}\]?

OpenStudy (anonymous):

x^-3

OpenStudy (anonymous):

x^-4/x^-1 = x^-3 f(x)=x^-3

OpenStudy (anonymous):

OpenStudy (anonymous):

understand?

OpenStudy (anonymous):

I know the top is all real numbers so x can be any number. the bottom half I believe x can be any number except 1 since. 0 in the denominater is undefined. in finding the domain of a function

OpenStudy (anonymous):

don't understand

OpenStudy (anonymous):

x^-4/x^-1 base -> x potences -> -4 and -1 same bases, sub potences. x^-4-(-1) x^-4+1 x^-3 f(x)=x^-3

OpenStudy (anonymous):

k

OpenStudy (anonymous):

and now? understand?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

good. :) good study.

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