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# Lesson Worksheet: Introduction to Matrices Mathematics

In this worksheet, we will practice identifying matrices and determining the order of a matrix and the position of each of its elements.

**Q8: **

The table below represents the prices of some drinks in a café. The café owner changes the prices of the drinks, so that each drink is now two times its original price. Determine the matrix that represents the new prices of the drinks.

Drink | Small Size | Big Size |
---|---|---|

Strawberry Juice | 1.5 | 5.5 |

Orange Juice | 2 | 8.5 |

Mango Juice | 3.5 | 9 |

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**Q9: **

The given bar chart shows actual and predicted data for several continents about the percent of the population who live in urban areas. Represent this data in a matrix where the rows represent years in order from past to future, and the columns represent the continents in alphabetical order.

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**Q10: **

The coach of a school basketball team recorded the statistics of three players in a tournament as follows: Ethan: 7 matches, 15 shots, and 5 goals; David: 13 matches, 24 shots, and 8 goals; and, James: 16 matches, 23 shots, and 19 goals. Arrange these data in a matrix where the rows represent the players from least goals to most, the first column gives the number of matches, the second column gives the number of shots, and the third column gives the number of goals.

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