ALGEBRA IS FUN

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Across
  1. 4. a rule of matching elements of two sets of numbers in which an input value from the first set has only one output value in the second set.
  2. 5. a letter or symbol used to represent a number.
  3. 6. the set of x coordinates of the sets of points on a graph, the set of x coordinates of a given set of ordered pairs.
  4. 7. pair a pair of numbers, (x,y) that indicates the position of a point on a Cartesian plane.
  5. 8. the sum of the lengths of the sides of a polygon
  6. 9. a number sentence that contains an equal symbol.
  7. 10. a number multiplied by a variable.
  8. 14. to find the value of an expression when the value of the variables are known.
Down
  1. 1. plane the region on one side of a boundary is called a half plane
  2. 2. to replace one element of a mathematical equation or expression with another
  3. 3. theorem it is a theorem that states a relationship that exists in any right triangle. If the lengths of the legs in the right triangle are a and b and the length of the hypotenuse is c, we can write the theorem as the following equation a^2+b^2=c^2
  4. 11. any mathematical sentence that contains the symbol >(greater than) < (Less than)<(Less than or equal to)
  5. 12. a mathematical phrase involving at least one variable and sometimes numbers and operation symbols.
  6. 13. the y coordinates of the sets of points on a graph the limits of the values a function can take
  7. 15. the branch of mathematics that deals with relationships between number, utilizing letters and other symbols to represent specific set s of numbers, or to describe a pattern of relationships between numbers.