Respuesta :

Answer:

The x-axis.

Step-by-step explanation:

This is an ellipse.

In standard form it s  x^2/36 + y^2/9 = 0.

When y = 0, x = +/- 6 and when x = 0, y = +/- 3  so the minor axis has length 6 and the major axis has length 12 and runs along the x-axis.

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