Algebra 1 CH4

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Across
  1. 2. Using the line of best fit to predict values outside the range of known data.
  2. 4. The steepness of a line; ratio of rise over run.
  3. 6. A type of piecewise function that looks like stairs — it jumps from one value to the next.
  4. 7. The differences between actual data points and the line of fit.
  5. 9. A regression method used to find the most accurate line of best fit for a data set.
  6. 13. A graph that shows individual data points (dots) based on two variables.
  7. 15. Using the line of best fit to predict values that are between known data points.
  8. 16. A straight line that best shows the general trend of a set of data points on a scatter plot. (4 words)
  9. 17. Lines that intersect at 90°; their slopes are negative reciprocals.
  10. 18. The fixed amount added to each term in an arithmetic sequence. (2 words)
  11. 19. Describes how closely two variables are related in a scatter plot.
Down
  1. 1. A function made of different rules for different parts of its graph.
  2. 3. Lines with the same slope but different y-intercepts.
  3. 5. A linear form equation using slope and a single point.
  4. 8. A number sequence where the difference between terms is constant.
  5. 10. Means one variable directly causes a change in another.
  6. 11. The point where the line crosses the x-axis. (2 words)
  7. 12. The point where the line crosses the y-axis. (2 words)
  8. 14. A linear form equation using slope and y-intercept.
  9. 16. A model line or set of lines that represent a specific problem and solution.