KatyKilkenny KatyKilkenny

20-05-2015
Mathematics

Answered

Determine which system below will produce infinitely many solutions. -4x + 6y = 20 4x - 3y = -2 -2x + 4y = 18 4x - 8y = -36 3x - 2y = 5 -6x - 4y = -10 5x - 3y = 12 15x - 9y = 24 can you help me please

Answer :

20-05-2015

The second:
[tex] \left \{ {{-2x+4y=18} \atop {4x-8y=-36}} \right. [/tex]
The second equation is equal to the first multiplied by -2, giving two coincident straight lines with infinite points in common (solutions)

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