be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be ab back to the skipped part. Tutorial Exercise The length of a rectangle is increasing at a rate of 4 cm/s and its width is increasing at a rate of 9 cm/s. When the length is 8 cm and the width is 6 cm, how fast is the area rectangle increasing (in cm/s)? Step 1 Let / and w represent the length and width of the rectangle in cm, and let A represent the area of the rectangle in cm. Writing an equation for A in terms of / and w following result. Am X Vi