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8th Grade Math FAST Vocabulary
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8th Grade Math FAST Vocabulary
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1. The likelihood of and even that have an equal chance of occurring. 50/50 chance Probability = ½ or 50% Example: flipping a fair coin. You have a 50% chance of landing on head and a 50% chance of landing on tails
Image: Equally Likely as Unlikely

2. An event or experiment where each outcome is equally likely to occur. Example:

3. Data with two variables, or pairs of numerical observations.
Image: bivariate data

4. (2/3)⁴= 2⁴/3⁴
Image: Power of a Quotient Property

5. Having the same size and shape
Image: congruent

6. two quantities increase at the same rate
Image: proportional relationship

7. A series of points on the coordinate plane that represents a value of a given function.
Image: Graph

8. the center point from which dilations are performed
Image: center of dilation

9. a single number, a single variable, or a product of a number and variable in an expression
Image: algebraic term

10. having equal angles
Image: Equiangluar

11. Something that can be repeated multiple times that has a set of different possible results. Example: spinning a spinner, rolling a number cube, flipping a coin
Image: Event or Experiment

12. Set of x values in a function
Image: Input

13. counting numbers
Image: Natural Numbers

14. The y value
Image: output function

15. The results you SHOULD get when you perform an experiment. This can be expressed as a fraction, decimal, or percent. Example: You are going to flip a coin 30 times. You should land on Heads 15 times, and Tails 15 times. The theoretical probability of each outcome is 15/30 = 1/2.
Image: Theoretical Probability

16. Given a numerical data set, order the numbers from least to greatest. The center number is the median. If there are two center numbers, take the mean of those numbers to find the median. MEDIAN is a better description of data when there is an outlier.
Image: Median

17. A reduction in the price of an item.
Image: Discount

18. An angle between 90 and 180 degrees
Image: obtuse angle

19. a graph that does not go through the origin.
Image: nonproportional relationship

20. Two numbers whose sum is 0 when added together. Opposite numbers are additive inverses. 17 and -17 are additive inverses because 17 + (−17) = 0
Image: Additive Inverse

21. The original figure prior to a transformation
Image: Preimage of a Transformation

22. a value of the variable that makes the equation true
Image: solution of an equation

23. A closed figure formed by three or more line segments
Image: polygon

24. The likelihood of an event that has more than a 50% chance of happening. Probability = < ½ or < 50% Example: Based on the data throughout the football season, the Chicago Bears have a 34% chance of winning their first playoff game.
Image: Unlikely

25. The amount of space an object takes up
Image: Volume

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