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Ber [7]
2 years ago
7

In algebra, we often study relationships where a change to one variable causes change

Mathematics
1 answer:
Jet001 [13]2 years ago
8 0

A familiar situation is: <em><u>cost </u></em><em><u>of books you pay for versus the </u></em><em><u>quantity </u></em><em><u>of books bought.</u></em>

Cost of books ($) and quantity of books are directly proportionally related in the situation.

The graph will look like the graph in the <em>attachment </em>below.

A quantity (dependent variable) will change constantly in relation to another quantity (independent variable) if the relation is a proportional relationship.

  • A familiar situation for example can be the cost you pay for books will be directly proportional or dependent on the number of books you bought.

That is:

  • Number of books = independent variable

  • Cost ($) = dependent variable

  • A change in the number of books will cause a change in the cost you will pay for buying books.

This shows a direct proportional relationship between the two quantities.

On a straight line graph, the graph will be a proportional graph showing number of books on the x-axis against cost ($) you pay on the y-axis.

<em>Therefore:</em>

  • A familiar situation is: <em><u>cost </u></em><em><u>of books you pay for versus the </u></em><em><u>quantity </u></em><em><u>of books bought.</u></em>

<em><u /></em>

  • Cost of books ($) and quantity of books are directly proportionally related in the situation.

  • The graph will look like the graph in the <em>attachment </em>below.

Learn more here:

brainly.com/question/5281177

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