# Graphing Terms

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Two Variable Graphing Definitions.

### Independent Variable

a value that doesn't depend on any others (it's just measured)

### Ordered Pair

first number plotted on x axis, second # plotted on y axis

### Scatter Plot

any graph of a set of points

### Dependent Variable

a value that depends or changes based on another (the one you want to predict)

### Interpolation

estimate a point on the line between given data points

### Linear Relationship

a pattern in data points on a graph that can be drawn as a straight line

### Origin

the point where the axes intersect

### Break mark

shows there is a break in the measurements on either axis

### X Axis

horizontal line at bottom of the graph labelled with name and measurements of the independent variable

### Negative Correlation

as independent variables increase, the dependent variables decreases graph goes down and to the right

### No Correlation

No pattern appears in the data-no line of best fit can be drawn because there is no relationship between the variables

### Non-linear Relationship

a pattern in data points on a graph that can be drrawn as a curved line

### Title

words at the top of a graph that identify the two variables and/or their relationship

### Extrapolation

estimate a point on the line after extending it beyond the given points

### Trend

a pattern in the data between the two variables (increasing or decreasing)

### Outlyer(outlier)

a piece of data that's bery different fromt the others

### Line of Best Fit

smooth line drawn near or through points on a graph that shows a trend

### First Difference

the difference between consecutive y values

### Positive Correlation

as independent variable increases, the dependent variables also increases-graph goes up and to the right

### Y Axis

vertical line at side of graph labelled with name and mearurements of the dependent variable

Example: