Question

Exercises 17–20 give equations for ellipses. Put each equation in stan-dard form. Then sketch the ellipse. Include the foci in your sketch.

17. 16x2 + 25y2 = 400

18. 2x2 + y2 = 2

19. 3x2 + 2y2 = 6

20. 6x2 + 9y2 = 54

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