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Question: If a circle passes through the points where the lines 3kx – 2y – 1 = 0 and 4x – 3y + 2 = 0 meet the...

If a circle passes through the points where the lines

3kx – 2y – 1 = 0 and 4x – 3y + 2 = 0 meet the coordinate axes then k =

A

1

B

– 1

C

12\frac{1}{2}

D

– 12\frac{1}{2}

Answer

12\frac{1}{2}

Explanation

Solution

a1 a2 = b1b2

3k × 4 = (–2) (–3)

k = 12\frac{1}{2}