Question

Hey can you please help me posted picture of question

Answer 1

A hope my answer was right

Answer 2

Answer:
y² = 4 - $\frac{4x^2}{25}$

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
$\frac{25y^2}{25} = \frac{100-4x^2}{25}$

y² = $\frac{x100-4x^2}{25}$

y² = $\frac{100}{25} - \frac{4x^2}{25}$

y² = 4 - $\frac{4x^2}{25}$

Hope this helps :)