Question 331267
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Use the slope formula:

*[tex \LARGE \ \ \ \ \ \ \ \ \ \ m\ =\ \frac{\upsilon_1\ -\ \upsilon_2}{\chi_1\ -\ \chi_2} ]

where *[tex \Large \left(\chi_1,\upsilon_1\right)] and *[tex \Large \left(\chi_2,\upsilon_2\right)] are the coordinates of the given points.

Your given points are *[tex \Large \left(0,1\right)] and *[tex \Large \left(x,2x\right)], hence:

*[tex \LARGE \ \ \ \ \ \ \ \ \ \ m\ =\ \frac{1\ -\ 2x}{0\ -\ x}]

Plug in your various values for *[tex \Large x] and do the indicated arithmetic.

John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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