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## Homework Statement

A particle is moving along the curve [tex]y= 3 \sqrt(4 x + 4)[/tex]. As the particle passes through the point (3, 12), its x-coordinate increases at a rate of 2 units per second. Find the rate of change of the distance from the particle to the origin at this instant.

## Homework Equations

1.[tex]y= 3* \sqrt(4 x + 4)[/tex]

## The Attempt at a Solution

Not too sure how to start.