8th Math Vocab

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Across
  1. 4. ________variation, a linear relationship between two variables, x (independent) and y (dependent), that always has a constant unchanged ratio, k, and can be represented by y = kx
  2. 10. _________relationship, a relationship with a constant rate of change represented by a graph that forms a straight line
  3. 11. ________numbers,the set of positive numbers that begins at one and increases by increments of one each time
  4. 13. ________relationship, a relationship with a constant rate of change represented by a graph that forms a straight line
  5. 14. Meaning same size, same shape
  6. 15. a linear measurement of the distance around the outer edge of a figure
  7. 17. a transformation frequently described as a slide of a figure
  8. 19. _______figures, shapes whose angles are congruent and side lengths are proportional
Down
  1. 1. a linear measurement of the distance around a circle
  2. 2. ________sample, a subset of the population selected without bias in order to make inferences about the entire population
  3. 3. a transformation frequently described as a flip or a mirror image of the original figure
  4. 5. ________numbers, the set of counting (natural) numbers and zero
  5. 6. y coordinate of a point at which the relationship crosses the y-axis meaning the x coordinate is equal to zero
  6. 7. a transformation frequently described as a turn of a figure around a designated point
  7. 8. the original amount borrowed or invested
  8. 9. a transformation in which an image is usually enlarged or reduced
  9. 12. the set of counting (natural numbers), their opposites, and zero
  10. 16. the steepness of a line; rate of change in y (vertical) compared to change in x (horizontal), denoted as m in y = mx + b
  11. 18. ________absolute deviation, a measure of variability of data around the mean