The sides of a square increase in length at a rate of 5m/s.

A) At what rate is the area of the square changing when the sides are 30m long?

B) A what rate is the area of the square changing when the sides are 40m long?

C) Draw a graph of how the rate of change of the area varies with the side length?

Answer rating: 100% (QA)

let side be x area x2 dA 2x dx ... View the full answer