Assume that a rectangle with sides x and y is expanding with

Last updated: 7/29/2022

Assume that a rectangle with sides x and y is expanding with time. Let y=2x and x(t)=3t+1. What is the formula for the rate of change of the area with respect to time? dA/dt=12(3t-1) dA/dt=(3t+1) dA/dt=4(3t - 1) dA/dt=12(3t+1)