First slide

Equation of line in Straight lines

Question

If $2 x + 3 y + 4 = 0 & λ x + k y + 2 = 0$ are identical lines then $3 λ - 2 k =$

Moderate

A

0
B

1
C

2
D

3

Solution

$\frac{2}{λ} = \frac{3}{k} = \frac{4}{2}$

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