Algebra Vocab Topics 1-4

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Across
  1. 3. A number from -1 to 1 that tells you how good a line of best fit is.
  2. 4. How we solve a system by canceling out one of the variables.
  3. 6. 2 or more equations or inequalities in the same problem.
  4. 9. What it means when we solve an equation to get 5=8.
  5. 11. Three words that describe slope.
  6. 12. A type of equation that is mostly variables, like V=lwh.
  7. 16. A formula for a sequence in the form a(n)=a1+(n-1)d.
  8. 17. Undoes an operation; used to solve equations.
  9. 18. Two equations with the same slope are ______.
  10. 19. The name for the y-values of a function.
  11. 20. Replacing a variable with a number or expression it's equal to.
  12. 21. The only way to show the solutions to two inequalities
  13. 22. The equation 5x-3y=18 is in this form.
Down
  1. 1. Where a line crosses the y-axis, labeled as b in most equations.
  2. 2. The name for x-values of a function.
  3. 5. An equation that is true for every value of the variable.
  4. 7. Two inequalities connected by 'and' or 'or'.
  5. 8. A group of elements from the original set.
  6. 10. Process for using a graphing calculator to make an equation for a line on a scatterplot.
  7. 13. A type of sequence made by adding the same number to get the next term.
  8. 14. The slope of an equation for a perpendicular line.
  9. 15. Using an equation to predict a value oustide of the known range.