Question

If the point (2,-1) lies on 2x + ky = 3, then the value of k is:

Answer 1

Answer:

k=1

Step-by-step explanation:

If point (2,-1) lies on 2x+ky=3, it means (2,-1) will satisfy given eqn.

=>2x2+kx(-1)=3

=>4-k=3

=>k=4-3

=>k=1

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Answer 2

Answer:

k=1

Step-by-step explanation:

(2,-1) lies on 2x + ky = 3,

MEANS X=2 AND Y=-1

BY PUTTING VALUES OF X AND Y IN  2x + ky = 3, WE CAN FIND THE VALUE OF K

SO

2x + ky = 3

2*2+k*-1=3

4-k=3

-k=-1

k=1

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