Practicing Success
The length x of a rectangle is decreasing at the rate of 2 cm/minute and the width y is decreasing at the rate of 3 cm/minute. When x =2 cm and y = 2 cm, which of the following statements hold true? |
The area of the rectangle increases at the rate of 10 cm2/min. The area of the rectangle decreases at the rate of 10 cm2/min. The area of the rectangle changes at the rate of 0 cm2/min. No definite results |
The area of the rectangle decreases at the rate of 10 cm2/min. |
dA/dt = -3x-2y |