Term
| A _________ ________ is a graph used to determine whether there is a relationship between paired data. |
|
Definition
|
|
Term
If y tends to increase as x increases, then the paired data are said to have a ...[image]
[image] |
|
Definition
|
|
Term
| If y tends to decrease as x decreases, then the paired data are said to have a ...[image] |
|
Definition
|
|
Term
| If the points show no linear pattern, then the paired data are said to have... |
|
Definition
| Relatively No Correlation |
|
|
Term
|
Definition
|
|
Term
| Point Slope Formula is... |
|
Definition
|
|
Term
| When data show a positive or negative correlation, you can approximate the data with a ______. You can do this by finding the ... |
|
Definition
| line, "best-fitting line" |
|
|
Term
| Sometimes the best-fitting line is not a very good fit. In statistics, the _________ _________, r, is used to measure how well a collection of data points can be modeled by a line |
|
Definition
|
|
Term
| A linear inequality in 2 variables can be expressed using these four relationship symbols: |
|
Definition
|
|
Term
| The ____________ _______ for a linear inequality in 2 variables is the set of all ordered pairs (x,y) that make the inequality _______. |
|
Definition
|
|
Term
| Name the 2 steps to exhibiting the solution set of a linear inequality in 2 variables. |
|
Definition
1) First, graph the boundary line.
2) Second, shade the region. |
|
|
Term
| If the relationship symbol is <, or >, then the line is ________. |
|
Definition
|
|
Term
If the relationship symbol is <, or >, then the line is ________.
|
|
Definition
|
|
Term
| If y<ax+c, or y<ax+c, then shade _______. |
|
Definition
|
|
Term
If y>ax+c, or y>ax+c, then shade _______.
|
|
Definition
|
|
Term
A function represented by a combination of equations, each corresponding to a part of the domain.
Ex. {2x-1, if x<1
{3x+2, if x>1 |
|
Definition
|
|
Term
| What is an example of a piecewise function that is formed by horizontal line segments that represent the tops of ________ _______? |
|
Definition
A Step Function.
"stair steps" |
|
|
Term
The ________ _________ _________ is an example of a step function (which is also piecewise). By definition, it is the greatest integer which is less than or equal to x(independent variable).
y or f(x) = [[x]] |
|
Definition
| Greatest Integer Function |
|
|
Term
| An ordered pair (x,y) is a _________ of a linear inequality if the inequality is true when the values of x and y are substituted into the inequality. |
|
Definition
|
|
Term
| Name the three part definition of Absolute Value: |
|
Definition
|x|= x, if x>0 (Positive)
0, if x=0 (Zero)
-x, if x<0 (Negative) |
|
|
Term
| The graph of an Absolute Value Equation in 2 variables is a "__" shaped graph. |
|
Definition
|
|
Term
| The _________ _______ is the point of intersection of the two sides of the "V". |
|
Definition
|
|
Term
| The formula for graphing general absolute value functions in 2 variables is... |
|
Definition
|
|
Term
What is the vertex point in the equation y = a|x-h|+ k
? |
|
Definition
|
|
Term
The Graph of the equation y = a|x-h|+ k is symmetric with respect to the line ______
|
|
Definition
|
|
Term
| The Graph of an Absolute Value Function is "V" shaped and opens upward if ___, and downward if ____. |
|
Definition
a > 0 (upward)
a < 0 (downward) |
|
|
Term
| The Graph of an Absolute Value Function is wider than y = |x| if _______ |
|
Definition
|
|
Term
The Graph of an Absolute Value Function is narrower than y = |x| if _______
|
|
Definition
|
|
Term
| In a real life situation(story problem), the "V" shaped graph cannot enter the quadrants... |
|
Definition
II, III or IV
(2, 3 or 4) |
|
|
