Rate of Change Real World

Rate of Change Real World

By Patrick Resch

​The cost of ground beef at Mike's Meat Market is a function of the number of pounds purchased. The cost of ground beef in pounds is shown by the table.

Pounds​	Total Cost​
2​	$7.26​
3​	$​10.89
4​	​$14.52
5​	$​18.15

​Based on the table what is the going rate of ground beef?

Answer must be in $/LB​

​What is the rate of change of y with respect to x of this function?

​The graph shows the linear relationship between the maximum area in square feet that can be painted and the number of gallons of paint used.

What is the rate of change of the maximum area painted with respect to the number of gallons used?​

​Mario lives 2 miles from the school and rides his bike there each day. He rides past one block every 50 seconds. Each block is 300 feet long. What is the rate, in feet per second, at which Mario rides?

​A hiker is on a hike. After 2 hours he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet. What is the average rate of change?

​Michael started a savings account with $300. After 4 weeks, he had $350 dollars, and after 9 weeks, he had $400. What is the rate of change of money in his savings account per week?

​A plane left Chicago at 8:00 A.M. At 1: P.M., the plane landed in Los Angeles, which is 1500 miles away. What was the average speed of the plane for the trip?