Algebra I Vocab Review

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Across
  1. 1. when the terms of a polynomial are arranged in 1) alphabetical order and 2) exponential order (from largest to smallest)
  2. 5. Rise over run;The steepness of a line on a graph;(y₂-y₁)/(x₂-x₁)
  3. 8. The greatest number/variable that is a factor of each of two or more numbers.
  4. 10. A coordinate system formed by the intersection of a horizontal number line, called the x-axis, and a vertical number line, called the y-axis.
  5. 13. A letter that represents a value that can change or vary
  6. 15. A value that does not change; an integer without a variable in an expression or equation
  7. 18. A number multiplied by a variable in an algebraic expression.
  8. 19. Expressions that contain the same variables to the same power (exponent)
  9. 20. reverse distribution of a quadratic function
  10. 22. A number, a variable, or a combination of a number and a variable
  11. 23. A relation in which each element of the domain is paired with exactly one element in the rangedomain
  12. 25. A pair of numbers that can be used to locate a point on a coordinate plane, for example (3,2); also known as a coordinate or a point
  13. 26. Any number that can be written as a fraction; includes natural, whole, and integer numbers; includes decimals that end or repeat
  14. 27. y-coordinate of a point on a line that crosses the y-axis; when x = 0 (ex: (0,3))
Down
  1. 2. another name for a square root
  2. 3. A function that can be written in the form f(x) = ax2+bx+c, where a,b,and c are real numbers and a ≠ 0
  3. 4. All of the output or y values in a function
  4. 6. the graph of a quadratic function
  5. 7. -b±[√b²-4ac]/2a
  6. 9. Two or more linear equations to be solved at the same time (with the same variables)
  7. 11. a number that can NOT be expressed as a fraction; includes decimals that never end or repeat - Pi or any square root of an imperfect square are considered irrational
  8. 12. All of the input or x values in a function
  9. 14. A mathematical phrase made up of terms; each term is separated by a + or -
  10. 16. x coordinate of a point where a graph crosses the x axis; y coordinate of this point is zero
  11. 17. another name for an algebraic expression; special cases include monomial (one term), binomial (two terms), and trinomial (3 terms)
  12. 21. the line that divides the parabola into two matching halves; x=-b/2a; the x-value of the vertex
  13. 24. the point where the axis of symmetry and the graph of a quadratic meet