| Question | Answer |
| Continuous Graph
p. 201 | graphs made with a connected line or curve |
| Discrete Graph
p. 201 | graphs made with individual, distinct points |
| Relation
p. 206 | a set of ordered pairs |
| Domain
p. 206 | in a relation, the set of first coordinates (or x-values) of the ordered pairs |
| Range
p. 206 | in a relation, the set of second coordinates (or y-values) of the ordered pairs |
| Function
p.207 | a special type of relation that pairs each domain value with exactly one range value (the x-values cannot repeat) |
| Dependent Variable
p. 216 | In a function, the variable (usually "y") that you get by doing the calculation in the equation - it "depends" on what you plug into the equation for "x" |
| Independent Variable
p. 216 | In a function, the variable (usually "x") that is plugged into an equation to yield results for the dependent variable. Usually, you can pick any number for this value to create ordered pairs. |
| Function Notation
p. 216 | In a function, if "x" is independent and "y" is dependent, the function notation for "y" is "f(x)" - read "f of x". When you see function notation, it signals that the equation and resulting relation is a function. |
| Scatter Plot
p. 224 | a graph with points plotted to show a possible relationship between two sets of data. |
| Correlation
p. 224 | describes a relationship between two data sets |
| Positive Correlation
p. 225 | both sets of data values increase - scatter implies an upward sloping trend line |
| Negative Correlation
p. 225 | one set of data values increases as the other set decreases - scatter implies a downward sloping trend line |
| No Correlation
p. 225 | there is no relationship between the data sets - the scatter looks random |
| Trend Line
p. 227 | a line added to a scatter plot to help show the correlation between data sets more clearly |
| Sequence
p. 234 | a list of numbers that often form a pattern |
| Term
p. 234 | each number in a sequence |
| Arithmetic Sequence
p. 234 | when the terms in a sequence differ by the same amount - that is they are all the same distance apart |
| Common Difference
p. 234 | the distance "d" apart the numbers are in an arithmetic sequence |
