**An ellipse is centered at the origin with a horizontal major axis length of 18 units and a vertical minor axis length of 16 units. Write the equation for the ellipse in standard form**.

**Answer:**

(x² / 9) + (y² / 8) = 1

**An ellipse is centered at the origin with a horizontal major axis length of 18 units and a vertical minor axis length of 16 units. Write the equation for the ellipse in standard form**.

**Answer:**

(x² / 9) + (y² / 8) = 1