Question

the area, a, of an ellipse can be determined using the formula a = πxy, where x and y are half the lengths of the largest and smallest diameters of the ellipse. which is an equivalent equation solved for y? o y = a - πx o y = a + (πx) o y = a - πx o y = a ÷ (πx)

Explanation:

Step1: Isolate y

Given $a = \pi xy$, divide both sides by $\pi x$ to solve for y.
$y=\frac{a}{\pi x}$

Answer:

$y = a\div(\pi x)$ (assuming the last option in the multiple - choice is meant to be $y = a\div(\pi x)$ as there seems to be a mis - type with '$m$' instead of $\pi$ in the problem statement. If we go by what's written with '$m$' in the problem, the correct answer would be $y = a\div(mx)$)