Across
- 1. a rule or equation describing the relationship of two or more variables or quantities
- 5. a line on which all points correspond to real numbers (a simple number line may only mark integers, but in theory all real numbers to +/- infinity can be shown on a number line)
- 6. a branch of mathematics that uses symbols or letters to represent variables, values or numbers, which can then be used to express operations and relationships and to solve equations
- 9. an algebraic equation in which each term is either a constant or the product of a constant and the first power of a single variable, and whose graph is therefore a straight line
- 11. any integer, ration or real number which is less than 0
- 15. the ratio of a circumference of a circle to its diameter, an irrational (and transcendental) number approximately equal to 3.141593…
- 16. numbers that can not be represented as decimals (because they would contain an infinite number of non-repeating digits) or as fractions of one integer over another
- 17. the correspondence in size, form or arrangement of parts on a plane or line (line symmetry is where each point on one side of a line has a corresponding point on the opposite side
- 18. in an algebraic expression or equation, either a single number or variable, or the product of several numbers and variables separated from another term by a + or - sig
- 19. whole numbers, both positive (natural numbers) and negative, including zero
Down
- 1. a way of writing rational numbers (numbers that are not whole numbers), also used to represent ratios or division, in the form of a numerator over a denominator
- 2. a number that will divide into another number exactly
- 3. a diagram where sets are represented as simple geometric figures (often circles), and overlapping and similar sets are represented by intersections and unions of the figures
- 4. the act of squaring, or finding a square equal in area to a given figure, or finding the area of a geometrical figure or the area under a curve (such as by a process of numerical integration)
- 7. property whereby summing two numbers and then multiplying by another number yields the same value as multiplying both values by the other value and then adding them together
- 8. the steepness or incline of a line, determined by reference to two points on the line
- 10. a number that is the sum of its divisors (excluding the number itself)
- 12. a triangle (three sided polygon) containing an angle of 90°
- 13. a relation or correspondence between two sets in which one element of the second (codomain or range) set ƒ(x) is assigned to each element of the first (domain) set x
- 14. a real number which expresses fractions on the base 10 standard numbering system using place value