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Question Number 80365 by gny last updated on 02/Feb/20

Commented by gny last updated on 02/Feb/20

$$sirplzhelpme$$

Commented by mr W last updated on 02/Feb/20

$$yousirpleasehelpus!!!$$$$howcansomebodyhelpyouifyou{don}^{\prime }t$$$$tellhimwhatyourquestionis?$$

Commented by jagoll last updated on 02/Feb/20

$$whatyourrequest?$$

Commented by Rio Michael last updated on 02/Feb/20

$$\mathrm{dude}\mathrm{what}\mathrm{do}\mathrm{we}\mathrm{do}\mathrm{with}$$$$\mathrm{that}\mathrm{function}??$$

Commented by gny last updated on 02/Feb/20

$$findthenumberofvaluesthat\left(\times \right)canget$$

Commented by Rio Michael last updated on 02/Feb/20

$$\mathrm{i}{\mathrm{don}}^{\prime }\mathrm{t}\mathrm{understand}$$

Answered by MJS last updated on 02/Feb/20

$$f\left(x\right)=\frac{x-4}{2x-6}$$$$\mathrm{defined}\mathrm{for}x\in \mathbb{R}\mathrm{\setminus }\left\{3\right\}$$$$\mathrm{range}:$$$$y=\frac{x-4}{2x-6}\iff x=\frac{6y-4}{2y-1}$$$$\mathrm{defined}\mathrm{for}y\in \mathbb{R}\mathrm{\setminus }\left\{\frac{1}{2}\right\}=\mathrm{range}\mathrm{of}f\left(x\right)$$

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