The grass in a field grows at a steady rate. At the start of a week, the grass was already several centimeters tall. Let t represent time in days, and let r represent the height of the grass.

Which sketch models this situation?

Question

The grass in a field grows at a steady rate. At the start of a week, the grass was already several centimeters tall. Let t represent time in days, and let r represent the height of the grass.
 
Which sketch models this situation?

itsbribro · Answer

A. http://static.k12.com/calms_media/media/1512000_1512500/1512491/1/5dbfd52c858a37555b352701c6572c9cc7548929/MS_IMC_080714_130221.jpg B. http://static.k12.com/calms_media/media/1512000_1512500/1512492/1/2bfbf160a5e89eda252ce03488fb2c383e2d5a65/MS_IMC_080714_130222.jpg C. http://static.k12.com/calms_media/media/1512000_1512500/1512493/1/b6fb59ccf027e07b7b27832d99e9435a97a3ad44/MS_IMC_080714_130223.jpg D. http://static.k12.com/calms_media/media/1512000_1512500/1512494/1/3c97f1181e1c308f8e8b4b2da1378605270a125c/MS_IMC_080714_130224.jpg

anonymous · Answer

time is always the x axis, the height is your y axis.

anonymous · Answer

the grass was already 7cm tall, so which graph starts off tall, and has a positive slope?