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Algebra Chapter 2
Chapter 2 vocab focus
| Question | Answer |
|---|---|
| Multiplicative inverse | Another name for reciprocal. When you multiply a number by this you get 1. |
| Solution | The answer to a problem. |
| Equation | A expression that states two things are the equal. It uses an equals sign. |
| Additive inverse | What you add to a number to get zero. The negative of a number. |
| Isolate | To move pieces of the equation around so that the variable is alone and positive. |
| Division property | The same number is divided by both sides of the equation. |
| Deduce | Arrive at (a fact or a conclusion) by reasoning; draw as a logical conclusion. |
| Multiplication property | The same number is multiplied on both sides of the equation. |
| Addition property | The same number is added to both sides of an equation. |
| Subtraction property | The same number is subtracted to both side of an equation. |
| Literal equation | An equations that is made up of only variables. |
| Coefficient | A number used to multiply a variable. |
| Constant | A number on its own, or sometimes a letter such as a, b or c to stand for a fixed number. |
| Distributive property | Multiply a number by a group of numbers. The jumping property. |
| variable | A symbol for a number we don't know yet. It is usually a letter like x or y. |
| corresponding | Angles or sides that appear in the same place in two similar situations. |
| percent | Part per 100. |
| rational number | Any number that can be made by dividing one integer by another. The word comes from "ratio". |
| equivalent fraction | Fractions that have the same value, even though they may look different. |
| rate | A quantity, amount, or degree of something measured per unit of something else. Example: 80 words per minute. |
| ratio | Compares values of different things such as boys to girls or desks to chairs. |
| unit rate | The ratio of two measurements in which the second term is 1. |
| conversion factor | A unit used to multiply or divide a quantity when converting from one system of units to another – such as inches to yards. |
| similar | These two shapes are this when one is smaller and/or flipped over, but otherwise the same. |