• #### Critical Points - Problem 3

##### Math›Calculus›Applications of the Derivative
How to determine one-sided and two-sided limits from the graph of a function.
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• #### Slope - Problem 2

##### Math›Algebra 2›Graphs of Linear Equations
How to find a point given a slope and another point on the line.
• #### The Vector Equation of a Line - Problem 2

##### Math›Precalculus›Vectors and Parametric Equations
How to write the vector equation of a line given two points on the line.
• #### The Distance Formula in Polar Coordinates - Problem 1

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to find the distance between two points, (3, 7*pi/6) and (5, pi/2), given their polar coordinates.
• #### The Midpoint and Distance Formulas in 3D - Problem 3

##### Math›Precalculus›Vectors and Parametric Equations
How to find the equation of the set of points equidistant from two given points.
• #### Slope - Concept

##### Math›Algebra 2›Graphs of Linear Equations
How to find the slope between two points.
• #### Midpoint Formula - Concept

##### Math›Algebra 2›Graphs of Linear Equations
How to find the midpoint of two points.
• #### Distance Formula - Concept

##### Math›Trigonometry›Pythagorean Theorem
How to derive the equation for the distance between two points using the Pythagorean Theorem.
• #### Distance Formula - Concept

##### Math›Geometry›Pythagorean Theorem
How to derive the equation for the distance between two points using the Pythagorean Theorem.
• #### Distance Formula - Problem 1

##### Math›Trigonometry›Pythagorean Theorem
How to find the distance between two points on the coordinate plane using the distance formula.
• #### Tangent Segments to a Circle - Problem 2

##### Math›Geometry›Circles
How to find the measure of an angle formed by a chord drawn between two points of tangency.
• #### Lines in 3D - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to find the vector and parametric equations of a line when given two points on the line.
• #### Distance Formula - Problem 1

##### Math›Geometry›Pythagorean Theorem
How to find the distance between two points on the coordinate plane using the distance formula.
• #### Midpoint Formula - Problem 2

##### Math›Algebra 2›Graphs of Linear Equations
How to find an endpoint given the midpoint and other endpoint, using the midpoint formula.
• #### Lines in 3D - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to find the vector equation, the parametric equations, and the symmetric equation of a line given two points on the line.
• #### Inverse Variation - Problem 3

##### Math›Algebra›Linear Equations and Their Graphs
How to solve for a variable in an ordered pair if told that two points are solutions to an inverse variation.
• #### Slope-Intercept Form of a Line - Problem 3

##### Math›Algebra 2›Graphs of Linear Equations
How to find the equation of a line in slope-intercept form given two points
• #### Graphing Lines using Intercepts - Problem 5

##### Math›Algebra›Linear Equations and Their Graphs
Using the x and y intercepts as two key points to connect in order to draw the graph of a line
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• #### Angles in Semicircles and Chords to Tangents - Problem 3

##### Math›Geometry›Circles
How to solve for arcs and angles formed by two chords drawn to a point of tangency.
• #### Tangent Segments to a Circle - Problem 3

##### Math›Geometry›Circles
How to calculate the measure of an intercepted arc formed by two tangents drawn from the same point.