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Posted by **ramesh** on Tuesday, December 11, 2012 at 9:12pm.

- maths -
**Reiny**, Tuesday, December 11, 2012 at 9:31pmdy/dx = 2x

so at (-2,4) slope is -4

y-4 = -4(x+2)

y-4 = -4x - 8 = k

-4x-8 = k

-4x = k + 8

x = -2 - k/4

y = 4 + k

Parametric equations for linear function ??

Why not just

y = -4x -4 ??

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