Zoey has a herd of 35 angus cows. She needs to plan to feed her cows through the winter and spring (November 15-May 15). Each cow will need 15 pounds of hay and 5 pounds of feed each day. The hay cost is $60.00 for a roll that weigh 900 pounds, and the feed cost is $400.00 per ton. What is the cost of feed for the winter?
What is the cost of Hay for the winter?

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

answer:   y=2x-3

step-by-step explanation: