Question

find the value of k when 3x+6y = k,if x= 2 ,y= 1​

Answer 1

Answer:

heres your answer

Step-by-step explanation:

Slope of line 3x+6y+7=0 is

6

−3

=−

2

1

Slope of line 2x+ky=5 is

k

−2

Since both lines are perpendicular, therefore,

2

−1

×

k

−2

=−1

⇒k=−1

Answer 2

Answer:

3x+6y=k

or,(3×2)+(6×1)=k

or,6+6=k

or,k=12

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