Question 364541
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The reason they call it an "ordered pair" is because the two elements are always in the same order, namely *[tex \Large (x,\,y)].  That means that the first value is ALWAYS the independent variable value, and the second value is ALWAYS the dependent variable value.  So replace the *[tex \Large x] in your equation with the first value of the ordered pair, then replace the *[tex \Large y] in your equation with the second value in your ordered pair.  Do the indicated arithmetic.  If you end up with a true statement, then the point is an element of the solution set of the equation.  If you end up with a false statement, then the point is NOT an element of the solution set of the equation.


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