Question 330561
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You don't need a graphing calculator.  You do it the way people did it before calculators were invented.  Use the slope formula.


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ m\ =\ \frac{y_1\ -\ y_2}{x_1\ -\ x_2} ]


where *[tex \Large \left(x_1,y_1\right)] and *[tex \Large \left(x_2,y_2\right)] are the coordinates of the given points.


Just plug in the values you were given and do the arithmetic.  You should be able to do this one in your head.


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