Question

Need some help here looking for real answer

Answer 1

B

Explanation:

9x² - y² = 1

use the power rule to differentiate

`(d)/(dx)` (a
`x^(n)` ) = an
`x^(n-1)`

`(d)/(dx)` (y² ) = 2y
`(dy)/(dx)`

`(d)/(dx)` ( constant ) = 0

differentiate both sides with respect to x

9 × 2x - 2y
`(dy)/(dx)` = 0 , that is

18x - 2y
`(dy)/(dx)` = 0