CCA Chapter 10 Vocabulary

1. this is used when ax^2+bx+c=0 where 'a' is nonzero and is not factorable
6. consists of two expressions on either side of an inequality symbol
8. a method used for quickly solving one-variable equations containing parenthesis or an absolute value symbol
9. the number or numbers that when substituted into an equation or inequality make the equation or inequality true
12. a quadratic equation in the form a(x+b)(x+c)=0 where 'a' is nonzero
14. numbers that CANNOT be expressed in the form a/b, where a and b are integers and b is nonzero
17. this is written as ax^2+bx+c, where a, b, and c are real numbers and a is nonzero
18. a point where a graph crosses the axes
19. examples of these types of numbers are: 2.78, -13267, 0, n, sqrt(8). All of these are represented on the number line
20. the organizational structure used to categorize numerals. Some examples are... real, rational, irrational, integers, and whole numbers

2. a relationship between two or more variables
3. a way to display categorical two-variable data. These entries can be counts (frequencies) or percents (relative frequencies)
4. the set of numbers {...-3,-2,-1,0,1,2,3...}
5. numbers that can be expressed in the form a/b, where a and b are integers and b is nonzero
7. this can be put into categories (like what color you prefer, your gender, or the state you were born in), as opposed to numerical data that can be placed on a number line
10. this is written as a ratio or a percent with given information
11. an algebraic technique to write an equation equivalent to the original. This will often involve using the Distributive Property to eliminate parenthesis
13. a quadratic equation in the form (ax+b)2=c, where 'a' is nonzero
15. the endpoint of a ray or segment on a number line where an inequality is true
16. number this is defined as the square root of -1. Therefore 2i=-1. They are not positive, negative, or zero.