Across
- 3. equation an equation that has a second-degree term and no higher terms.
- 6. - The __ property of addition states that for every number a, a + (-a) = 0 (zero).
- 7. shows a mathematical relationship between expressions.
- 10. When you __ an equation or a problem, you find solutions for it.
- 14. - A variable is an unknown or placeholder in an algebraic expression
- 16. a power that a number is raised to. For example, in 23, the exponent is 3.
- 17. a number are the numbers s such that s2=n. For example, the square roots of 4 are 2 and -2; the square roots of 9 are 3 and -3.
- 18. - The __ property of multiplication states that for every non-zero number a, a times (1/a) = 1.
- 20. - the numbers ..., -3, -2, -1, 0, 1, 2, ....
Down
- 1. number a positive number that has exactly two factors, 1 and itself.
- 2. - In an expression or equation, terms are numbers, variables, or numbers with variables. For example, the expression 3x has one term, the expression 4x2 + 7 has two terms.
- 4. a number is a number that, when multiplied by itself n times, results in that number.
- 5. a number is a number that divides that number exactly.
- 8. value a number is the distance from the origin on a number line.
- 9. a part of a whole, like a half, a third, a quarter, etc.
- 10. - A symbol is a mark or sign that stands for something else. For example, the symbol รท means divide.
- 11. - A consists of one or more variables, constants, and operations, like 3x-4.
- 12. a mathematical expression that contains an inequality symbol.
- 13. formulal a formula that gives you a solution to the quadratic equation ax2 + bx + c = 0.
- 15. of equations - A system of equations is two or more independent equations that are solved together. For example, the system of equations: x + y = 3 and x - y = 1 has a solution of x=2 and y=1.
- 19. a symbol that is used to indicate the square root or nth root of a number.
- 21. a mathematical statement that contains an equal sign, like ax + b = c.