Module Five Vocab

4. : A cross section is the shape we get when cutting straight through an object.
8. : Given the actual value, a, of the quantity, the absolute error is |x - a|. (Lesson 19)
10. : The percent the absolute error is of the actual value (|x-a|/a * 100)% where a is the actual value of the quantity and x is the approximate value of the quantity
12. : Income minus all expenses.
13. : An equation that states that two ratios are equivalent. It can be written in the form a/b = c/d , where b and d are not zero.
14. : When quantities have the same relative size. In other words they have the same ratio.
16. : The value of a scale when the units are the same.

1. of multiplication : Changing the grouping of factors does not not change the product.
2. : The constant value (often written k) relating amounts that rise or fall uniformly together.
3. : How far a number is from zero.
5. : An equation says that two things are equal.
6. : Parts per 100.
7. : A drawing that shows a real object with accurate sizes reduced or enlarged by a certain amount (called the scale).
9. : A comparison of two related quantities.
11. : How much of something per 1 unit of something else.
15. : A ratio shows the relative sizes of two or more values.