If the curves $\mathrm{y}^{2}=6 \mathrm{x}, 9 \mathrm{x}^{2}+\mathrm{by}^{2}=16$ intersect each other at right angles, then the value of $b$ is :
$\frac{7}{2}$
4
$\frac{9}{2}$
6
Correct Option: , 3
Leave a comment
All Study Material
