Crossword Time!

4. the lines representing the graph of a pair linear equations where a1/a2≠b1/b2 are _________.
6. The ______theorem of arithmetic states that every natural number greater than 1 can be written as a unique product of prime numbers.
8. A number used to multiply a variable.
11. It is the smallest non-zero number that is a common multiple of two or more numbers considered.
14. A whole number that has factors other than 1 and the number itself is called a ____ number.
16. the lines representing the graph of a pair linear equations where a1/a2=b1/b2≠c1/c2 are ______.
17. It is a real number written as a ratio of integers with a non-zero denominator.
19. It is an algebraic expression where the constants are real numbers and the exponent of the variables are whole numbers.

1. When the lines of the graph representing a pair of equations are intersecting, the solution is _________.
2. It is a method of solving a system of equations wherein one of the equations is solved for one variable in terms of the other variables.
3. It is the highest number that divides 2 or more numbers exactly.
5. the lines representing the graph of a pair linear equations where a1/a2=b1/b2=c1/c2 are______.
7. A series of well defined steps which gives a procedure for solving a type of problem.
9. Any real number that cannot be expressed as a ratio of integers is called a ______ number.
10. The decimal expansion of a real number which has a finite number of digits after the decimal point is called a ____ decimal.
12. It is the product of a number and any other whole number.
13. the collection of rational and irrational numbers are called ____ numbers.
15. A positive integer that has exactly two factors, 1 and the number itself is called a ______ number.
18. A proven statement used for proving another statement.
19. If the sum of the proper divisors of a number is equal to the number itself, then that number is called as a ________number.