Question 983796
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Put both equations into slope-intercept form.


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ y\ =\ -\frac{1}{a}x\ +\ 3]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ y\ =\ -\frac{2}{5}x\ +\ b]


In order for there to be a unique solution, the slopes of the two lines must be different, hence any value of *[tex \Large a] that is NOT equal to *[tex \Large \frac{5}{2}] will result in a unique solution.


In order for there to be more than one solution, the slopes AND the *[tex \Large y]-intercepts must be equal, hence *[tex \Large \left(\frac{5}{2},3\right)]


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

*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \