## Algebra Terms to Know

##### Created by:

dsefcik1024  on February 14, 2011

##### Description:

Algebra Terms to Know for Algebra 1B

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# Algebra Terms to Know

 ConstantsThe numbers in a problem that do not change.
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#### Definitions

Constants The numbers in a problem that do not change.
Variables Letters that represent an unknown or changing number.
Independent Variable The variable that you start with and put on the horizontal axis (X-Value) First Column
Dependent Variable The variable that you calculate and put on the vertical axis (Y-Value) Second Column
X-Intercept The point at which the graph crosses the x-axis (where y=0)
Y-Intercept The point where the graph crosses the y-axis (where x=0). This is usually the starting point.
Domain All the possible X-Values
Range All the possible Y-Values
Slope The change in the Y-Value over the change in the X-Value; Rise over Run; Rate of Change
Positive Slope Increasing Y- Values
Negative Slope Decreasing Y-Values
Linear Function A relationship between two values that increase or decrease by the same amount each time (adding or subtracting)
Intersections Where two graphs cross and have the same values

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