For what value of n are the lines 4x + 6y = 9 and -3x + ny = 8 perpendicular?

Sarp asked Dec 28, 2023

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Sarp asked Dec 28, 2023

by Sarp

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15 votes

We have:

So: (d) ⊥ (d')

=> -2/3 × 3/n = -1

=> -2/n = -1

=> n = -2/-1

=> n = 2

p/s: I'm not sure

Ok done. Thank to me :>

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