| After flying a short distance, an insect came to rest on a wall. Thereafter the insect started crawling on the wall. The path that the insect crawled can be described by h(t)=(t−6)(−2t2+3t−6), where h is the height (in cm) above the floor and t is the time (in minutes) since the insect started crawling. |
| 8.1 | At what height above the floor did the insect start to crawl? | (1) |
| 8.2 | How many times did the insect reach the floor? | (3) |
| 8.3 | Determine the maximum height that the insect reached above the floor. | (4) |
| | [8] |