Chapter 1.9, Problem 16P

A worker finds that it takes 9 tiles to cover one square foot of floor. Make a table and draw a graph to show the relationship between the number of tiles and the number of square feet of floor covered. How many square feet of floor will be covered by 261 tiles?

To determine

To make a table and draw a graph to show given relationship and to determine the area covered by 261 tiles.

Answer to Problem 16P

The area covered by 261 tiles is 29 square foot.

Explanation of Solution

Given information :

it takes 9 tiles to cover one square foot of floor.

Let take total tiles be $y$ for an area of $x$ square foot.

Hence the equation shall be,

  $y=9x$

Now we shall make a table for the given relationship.

Area (square foot)	Total number of tiles
1	9
2	18
3	27
4	36
5	45

Now we shall draw a graph.

  

Hence the area covered by 261 tiles is 29 square foot.