(a)
Find the rate of change in approximate sales from 2003 to 2006.
(a)
Answer to Problem 20MCQ
30,000 sales/year
Explanation of Solution
Given :
The 2003 and 2006 sales figures for V Electronics are:
Formula Used:
Slope of a line passing through points
Calculation :
Let the year be represented by x and the approximate sales be represented by y .
The rate of change in approximate sales with respect to the change in year :
Consider points (2003,240000) , (2006,330000) and find the slope
Rate is positive, which indicates that sales are increasing each year .
(b)
Find the approximate sales for the year 2010 , if the rate remains same.
(b)
Answer to Problem 20MCQ
There are approximate sales of $450,000 in the year 2010.
Explanation of Solution
Formula Used:
Slope of a line passing through points
Calculation :
From part (a) , the rate of approximate sales is 30,000 sales/year and
Approximate sales ,
Let approximate sales in the year , x = 2010 be y .
Since the rate of approximater sales remains same , we have:
So, there are approximate sales of $450,000 in the year 2010.
Chapter 3 Solutions
Geometry, Student Edition
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