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For what ordered pair (a,b) are there infinite solutions (x,y) to the system

4x + ay = -8

3x - y = b

 Aug 8, 2021
 #1
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If the equations are the same...there is infinite solutions ...they are the same line...

   multiply bottom equation by  1 1/3

 4x  -  1 1/3 y = 1 1/3 b               then if a = - 1 1/3    and   1 1/3 b = -8      b = -6     the equations become the same

 Aug 8, 2021

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