An Introduction to Matrices
By Mr. Lance W.
Important terms to know:
Element- is each value in the matrix.
Row- the section of the matrix that goes horizontal.
Column- the section of the matrix that runs vertically.
Dimensions- the number of boxes within the matrix.
Matrices are important in grouping data and are useful in solving many mathematical equations.
Place this data in a matrix:
Madison is looking
for a restaurant to take his prom date to before the dance. Madison wants
to have a nice meal, but the only date he could get was a really ugly girl, so
he does not want to spend too much money or be in the car with her too
long. Lucky 32 is 8 miles away, cost about 50 dollars for two to
eat, and has a food quality of 8. Golden Corral is 15 miles away, cost 20
dollars for two to eat, and has a food quality of 6. Bojangles' is 4 miles
away, cost 15 dollars for two to eat, and has a food quality of 10. What
is the best choice based on quality, food, and shortest distance.
this is a picture of Madison's date.
| Place the name of the restaurant so there is one in each row. | place cost, quality, and distance so one is above each column. | |||
| restaurant names | Cost | Quality | Distance | |
| Lucky 32 | $50 | 8 | 8 miles | |
| Golden corral | $20 | 6 | 15 miles | |
| Bojangles' | $15 | 10 | 4 miles |
This problem works out nicely, when you look down the cost column the cheapest price is Bojangles'. Looking down the quality column, Bojangles' is the highest, and in the distance column Bojangles' is the closest.
Since Bojangles' is the closest, cheapest, and has the best quality Madison should take his ugly date to Bojangles so he does not have to spend a lot of money on her, does not have to stay in the car with her long, and can still get great food.
Quote of courage
Other links
http://www.ping.be/~ping1339/matr.htm#Matrix