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October 1, 2014

October 1, 2014

Posted by **Anonymous** on Monday, March 24, 2014 at 10:24am.

x = 0.2sec t and y = -0.25tan t

A) 25x^2 − 16y^2 = 1

B) 25x^2 + 16y^2 = 1

C) x^2 − 16y^2 = 25

D) 25y^2 − 16x^2 = 1

E) 4x^2 − 16x^2 = 1

- Math - PreCalc (12th Grade) -
**Steve**, Monday, March 24, 2014 at 11:00amsince sec^2 = 1+tan^2,

(x/.2)^2 = (y/-.25)^2 + 1

25x^2 - 16y^2 = 1

Looks like A to me

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