You can use words or an algebraic expression to write a mathematical rule that describes a real-life pattern.
Hobbies The table below shows how the height above the floor of a house of cards depends on the number of levels. What is a rule for the height? Give the rule in words and as an algebraic expression.
Number of Levels | Height (in.) |
---|---|
2 |
|
3 |
|
4 |
|
n | ? |
Know | Need | Plan |
---|---|---|
Numerical expressions for the height given several different numbers of levels | A rule for finding the height given a house with any number of levels n | Look for a pattern in the table. Describe the pattern in words. Then use the words to write an algebraic expression. |
Rule in Words | Multiply the number of levels by 3.5 and add 24. |
Rule as an Algebraic Expression | The variable n represents the number of levels in the house of cards. |
✓ Got It?
Number of Sides of Polygon | Number of Triangles |
---|---|
4 |
|
5 |
|
6 |
|
n |
|