Respuesta :

A hope my answer was right
Louli
Answer:
y² = 4 - [tex] \frac{4x^2}{25} [/tex]

Explanation:
The given expression is:
4x² + 25y² = 100

We need to isolate the y².
This can be done as follows:
4x² + 25y² - 4x² = 100 - 4x²
25y² = 100 - 4x²
[tex] \frac{25y^2}{25} = \frac{100-4x^2}{25} [/tex]

y² = [tex] \frac{x100-4x^2}{25} [/tex]

y² = [tex] \frac{100}{25} - \frac{4x^2}{25} [/tex]

y² = 4 - [tex] \frac{4x^2}{25} [/tex]

Hope this helps :)