Question

find value of k 2x + ky - 1 and 3x - 6y - 7 = 0​

Answer 1

Answer:

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