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Focus60
60 8th grade vocabulary words
| Question | Answer |
|---|---|
| absolute value | The distance of a number from zero; the positive value of a number |
| area | Size a surface takes up measured in square units |
| area of the base | Bottom face of a polyhedron which is multiplied by height to figure volume; denoted by capital B in formulas |
| biased sample | Individuals or groups from the population are not represented in a sample |
| box and whisker plot | A graph to show medians and distribution of data in quartiles |
| circumference | Distance around a circle |
| commission | A percentage of the money received from a total paid to the agent |
| compound probability | Likelihood that 2 independent events will happen (probability of first times the probability of second) |
| corresponding parts | Features situated in the same location in congruent figures |
| diameter | Distance across a circle through the center |
| dilation | Transformation that produces a figure of the same shape but different size |
| dimensions | Measures of length, width, and height |
| discount | A reduction in price usually based on a percentage |
| equivalent ratio | Proportional relationship created by multiplying (scaling) by a form of one; cross products are equal |
| factor | A whole numbers that can be divided exactly into a given number |
| formula | Equation that states a rule for the relationship between certain quantities |
| function | Relationship in which one value depends on the other (input & output) |
| hypotenuse | Longest side of a right triangle which is opposite the right angle |
| inequality | Not equal in size, amount, or value; greater or less than |
| integers | Positive and negative whole numbers or zero |
| interest | A charge for borrowed money generally a percentage of the amount still owed |
| inverse operation | The opposite operation which will negate an operation |
| irrational numbers | Numbers that cannot be expressed as fractions, terminating decimals, or repeating decimals |
| lateral surface area | Sum of the areas of the side faces of a polyhedron |
| legs | Sides that form the right angle of a right triangle |
| linear | A relationship which has a constant rate of change; graphs as a straight line |
| markup | An amount added to the cost price to determine the selling price |
| multiple | Any number into which a given number will divide exactly |
| negative correlation | As one variable increases, the other decreases; trends downward on a graph from left to right |
| origin | The point (0,0) on a coordinate plane where the x-axis and the y-axis intersect |
| outlier | Value in a data set that is noticeably higher or lower than the other values |
| percent | A ratio that compares a number to 100 |
| percent of change | A ratio that compares the change in a quantity to the original amount |
| perfect square | A number whose square root is a whole number |
| perimeter | Distance around a closed shape |
| positive correlation | As one variable increases, the other increases; trends upward on a graph from left to right |
| principal | A sum of money lent or invested on which interest is paid |
| prism | Polyhedron with 2 parallel, congruent polygon bases |
| probability | Mathematical likelihood of an event happening |
| product | The answer to a multiplication problem |
| proportional | Having a constant ratio with another quantity |
| pyramid | Polyhedron with 1 polygon base and a pointed top |
| Pythagorean Theorem | Sum of the squares of the legs of a right triangles equals the square of the hypotenuse |
| Pythagorean Triple | Set of three numbers that work in the Pythagorean Theorem formula |
| quadrants | The four sections of a plane divided by an x and y axis |
| quotient | The answer to a division problem |
| radius | Distance from the center of a circle to any point on the circle |
| random sample | Sample in which each individual or object has an equal chance of being selected |
| rational numbers | Numbers that can be expressed as terminating or repeating decimals |
| reciprocal | Fraction flipped upside down; reciprocals multiply to 1 |
| sample space | Set of all possible outcomes |
| scale factor | Ratio of measurements of similar figures to describe the magnification (new/old) |
| scatterplot | graph with points plotted to show a relationship between two variables |
| scientific notaiton | A condensed way of writing very large or small numbers using powers of ten |
| similar | A proportional figure with the same shape, but different size |
| square root | One of the two equal factors of a number |
| surface area | Sum of the areas of the faces of a geometric solid (square units) |
| unit rate | A rate with a denominator of one |
| Venn diagram | Circles to show the relationship between sets |
| volume | Amount of space a geometric solid takes up (cubic units) |
Created by:
bmendiola
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