Algebra Vocabulary Words: from Chapter 8 -Factoring Polynomials, Chapter 9 - Quadratic Functions and Equations, and Chapter 10 - Rational Functions and Equations

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Across
  1. 3. When the direction of a parabola is a<0
  2. 4. When the point of the y-value is high, above, and up.
  3. 5. The high or low point of a parabola which is also the meeting point of the axis of symmetry.
  4. 6. A method when you solve quadratic equations and find a positive and negative number that multiplied itself to form a product to find the solution. ( 2 words)
  5. 8. (one word)
  6. 9. When the number of solution is b^2-4ac>0. ( 3 words)
  7. 10. When the number of solution is b^2-4ac=0. (3 words)
  8. 13. A method where you find the axis of symmetry, then the vertex, find the y-intercept, find 2 points on the same side of the axis of symmetry as the y-intercept, reflect the points, and connect them which forms a parabola.
  9. 14. An answer to a rational equation that could be wrong, so you would always have to plug it back in and check your answer.
  10. 15. A factoring method when you notice that the equation is a binomial ( 2 terms) and it has a subtraction sign. Also, you notice the equation has perfect squares. (4 words)
  11. 21. When there is an equal sign in the middle and you multiply them diagonally in order to solve the equation. This problem may look like proportions. ( 2 words)
  12. 22. A factoring method when there are 3 terms (trinommial) and you use it for the equations, x^2+bx+c. (2 words)
  13. 23. A form of rational expressions, but the denominators must be the same and you are suppose to find the sum.
  14. 26. When the point of the y-value is low,
  15. 27. b^2-4ac
  16. 28. The points/dots/coordinates on the x-axis which could have 1 point or 2 points. There are many ways to find this, but one example is a graph.
  17. 29. A form of rational expressions, but the denominators has to be the same and you are trying to find the difference.
  18. 30. When you factor the equation and make it equal to zero in order to find the roots. (2 words)
  19. 31. A factoring method when the first and third terms are perfect squares, so you multiply them by 2 which may or may not equal to the middle term. This method is usually a trinomial (3 terms). (2 words)
Down
  1. 1. When the direction of the parabola is a>0
  2. 2. A factoring method when there are 3 terms (trinomial), but you use it for the equation, ax^2+bx+c. (2 words)
  3. 3. When you have to divide each term to the numerator (should be a polynomial) by the denominator (should be a monomial). (6 words)
  4. 7. x=(-b±√(b^2-4ac))/2a. (2 words)
  5. 11. When the number of solution is b^2-4ac<0. (3 words)
  6. 12. A factoring method when you align terms and find the common denominators, but you do not multiply the left overs.
  7. 16. A problem where the bottom of a fraction (denominatior) and the top of a fraction (numerator) has 4 or more terms (polynomial). (2 words)
  8. 17. x^2+bx=c. (b÷2)^2 (b divided by 2 and square it). (3 words)
  9. 18. y=ax^2+bx+c. (2 words)
  10. 19. The middle of a parabola. In other words, half of a parabola when you fold it. x= -b/2a. (3 words)
  11. 20. When you make the denominator equal to zero and you solve it which is the number that can't be in the problem or is left out. (2 words)
  12. 24. A method where you divide polynomials which should include the words, divisor,quotient, and dividend. (2 words)
  13. 25. When you align the factors of the terms and find common factor, but you also multiply the left overs.