Posted by Cindy on Tuesday, February 22, 2011 at 7:27pm.
I am having ahard time solving this problem and am not good with story problems, could someone please help. Can you show how you would write out problem.
The average price of an acre of U.S farmland was $1132 in 2001. In 2006, the price of an arce rose to approximately $1657.
a. Write two order pairs of the form (year, price of acre)
b. find the slope of the line through the two points
Explain the meaning of the slope as a rate change.

Math  Helper, Tuesday, February 22, 2011 at 9:11pm
In 2001, aver. price of an acre = $1132
In 2006, aver. price of an acre = $1657
a. 2001 = 0, 1132; 2006 = 5, 1657
2001 would be the starting year and 2006 would be 5 years later
The ordered pairs would be,
(0,1132), (5,1657)
b. slope
m = y2  y1/(x2  x1)
m = 1657  1132/(5  0)
m = 525/5
m = 105
The equation of the line with
slope m = 105, and point (5,1657)
y = mx + b
y = 105x + b
1657 = 105(5) + b
1657 = 525 + b
b = 1132
Therefore, the equation is
y = 105x + 1132
Explain the meaning of the slope as a rate change.
See this website for an excellent explanation.
http://www.purplemath.com/modules/slopyint.htm
Answer This Question
Related Questions
 College Math II  Show a complete solution to each problem. Find the exact ...
 Math: is it? is it not?  Is this math problem hard?  There are 12 brothers ...
 algebra  Abby spent 5 1/2 minutes solving 5 math problems on her homework. How ...
 algebra 1  Can someone please help me with this inequality problem 38>(4x+...
 Math  Write a story for the following multiplication problem : 16x5 Derrick ...
 algebra  I am having a hard time solving my problem 2ã20 + 5 ã 80  7 ã5 Can...
 algebra  I am having a hard time solving my problem 2ã20 + 5 ã 80  7 ã5 Can...
 Math  Can someone please work out the steps in solving this elimination problem...
 Math problem  having problems working this problem out please solve 49 5/2
 3rd grade  Good evening ~ I have 2 questions. Kelsey was assigned math homework...
More Related Questions