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