| A | B |
|---|
| identity | An equation that is true for every value |
| ratio | It is a comparison of two numbers by division |
| rate | If a and b represent quantities measured in different units, then the of a to b is this |
| unit rate | It is a rate with a denominator of 1 |
| unit analysis | When converting from one unit to another, you must decide which conversion factor will produce the appropriate unit |
| proportion | It is an equation that states that two ratios are equal |
| extremes of a proportion | In this proportion “a is to b as c is to d.” For this proportion a and d are these |
| means of a proportion | In this proportion “a is to b as c is to d.” For this proportion b and c are these |
| cross products | The products ad and bc are called this |
| dimensional analysis | When converting from one unit to another, you must decide which conversion factor will produce the appropriate unit |
| similar figures | These have the same shape but not necessarily the same size |
| dilation | This is a transformation in which a figure and its image are similar |
| scale factor | The ratio of the dimensions of the new image to the dimensions of the original figure is called this |
| scale drawing | This is an enlarged or reduced drawing that is similar to an actual |
| scale | This is the ratio of a distance in the drawing to the corresponding actual distance |
| consecutive integers | These differ by 1 |
| uniform motion | An object that moves at a constant rate has this |
| percent of change | This is the ratio (amount of change/original amount) expressed as a percent |
| percent of increase | When a value increases from its original amount |
| percent of decrease | When a value decreases from its original amount |
| greatest possible error | This is one half of that measuring unit |
| percent error | This is equal to (greatest possible error/measurement) |
| square root | The number a is this of b if a^2 = b. |
| principal square root | This is when the square root of the number is equal to a positive value |
| negative square root | This is the opposite of the principal square root |
| radicand | This is the expression under the radical sign |
| perfect squares | The squares of integers are these |
| hypotenuse | In a right triangle, the side opposite the right angle is this |
| leg | Each of the sides forming the right angle is this |
| Pythagorean Theorem | This describes the relationship of the lengths of the sides of a right triangle |
| conditional | This is an if-then statement like “If an animal is a horse, then it has four legs” |
| hypothesis | This is the part following if |
| conclusion | This is the part following then |
| converse | This is when a conditional switches the hypothesis and the conclusion |
