Consider the function

y $=$

$1$ over $9+4$x$^2$

Follow the steps to find

dydx

$.$

Determine what the inside and outside functions are. Let the insides be the variable u$,$ then rewrite y in terms of u$.$

Insides: u $=$

Outside: y $=$

Use the chain rule

dydx

$=$

dydu

$$

dudx

to find the derivative of the function. Write your answer in terms of x$.$

dydx

$=$