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(x - 8)2 (y + 1)2 28. An ellipse has the equation 1 16 100 (a) Is the major axis horizontal or vertical? (b) Find

(x - 8)2 (y + 1)2 28. An ellipse has the equation 1 16 100 (a) Is the major axis horizontal or vertical? (b) Find the exact values of the foci of the ellipse. Show work

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