• #### Solving Radical Equations - Problem 10

Extraneous solutions presented algebraically and graphically in the context of radical equations.
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• #### Introduction to Systems of Equations - Problem 5

##### Math›Algebra›Solving Systems of Equations
How to algebraically determine whether a point is a solution to a given system
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• #### Solving Radical Equations - Problem 14

Finding the domain of a rational function algebraically by setting the radicand greater than or equal to zero.
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• #### Solving Multi-step Equations - Problem 6

##### Math›Algebra›Solving Equations
Examples of turning word problems into equations and solving for an unknown algebraically
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• #### Inconsistent and Dependent Systems of Equations - Problem 4

##### Math›Algebra›Solving Systems of Equations
Identifying systems of linear equations as inconsistent or dependent algebraically
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• #### Intercepts of Linear Equations - Problem 2

##### Math›Algebra›Linear Equations and Their Graphs
How to find the x and y intercepts algebraically.
• #### Intercepts of Linear Equations - Concept

##### Math›Algebra›Linear Equations and Their Graphs
How to work with x an y intercepts graphically or algebraically.
• #### Unit Vectors - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to express a vector algebraically in terms of the unit vectors i and j.
• #### Algebraic Representation of Vectors - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to express a position vector algebraically in component form <a,b>, and how to compute its magnitude.
• #### Algebraic Representation of Vectors - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to express a vector from point Q to point R algebraically in component form <a,b>.