Chapter 1.6, Problem 58PPE

To determine

To name: the ordered pair at D for the given curve and explain the meaning of the ordered pair

Answer to Problem 58PPE

The ordered pair is (5, 6)

Explanation of Solution

Given:

  

It is clear from the given graph that it is showing the relation between the annual sales corresponding to various years starting from the year 2010.

Here, x-axis represents “Year” and the origin that is the point ‘O’ is the starting point which is the year 2010 as mentioned in the question. And each division corresponds to increment of a year which means ‘0’ denotes year 2010, ‘1’ denotes year 2011, ‘2’ denotes year 2012, etc..

Also, y - axis represents the “Sales (in millions $)”. Each division corresponds to increment of a million $ sales which means ‘1’ denotes 1 million $ of sales, ‘2’ denotes 2 million $ of sales etc.

Now, ordered pair is the co-ordinate of a point which is represented in the form of (x, y).

It is clear from the graph that the corresponding co-ordinate for the point D is (5, 6).

Now, the interpretation of point D which is (5, 6) is that in the year 2005 there was a sales of 6 million $ sales.