momo7948 momo7948
  • 11-07-2017
  • Mathematics
contestada

Find the value of a if the point (4,-2) lies on the line 2x+ay=14

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  • 11-07-2017
2x+ay=14
(4;-2)
2*4+a*(-2)=14
8-2a=14
2a=8-14
a= -3
2x-3y=14
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