Question

Please help thanks !

Answer 1

option D

Explanation:

`x^(2) + y^(2) = 16\\\\x^(2) = 16- y^(2)`

equation 2:

`(x^(2))/(4) - (y^(2))/(25) = 1`

so we have:

`(16- y^(2) )/(4)-(y^(2))/(25)= 1`