equations 164 videos
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Parametrizing a Circle
Precalculus Vectors and Parametric Equations
How to write the parametric equations of a circle centered at (0,0) with radius r, oriented counter-clockwise.
the unit circle cosine sine parametrization parametric equations circle counter clockwise -
Cramer's Rule
Precalculus Systems of Linear Equations and Matrices
How to solve a system of two linear equations with two unknowns using Cramer's rule.
systems of linear equations Cramer's rule determinant coefficient matrix -
Vertical and Horizontal Shifts of Quadratic Graphs
Algebra Quadratic Equations and Functions
How to graph parabolas with horizontal and vertical shifts without making a table of values.
shift vertex quadratic equation -
Coin Word Problems
Algebra Word Problems Using Systems of Equations
How to solve word problems about values and number of coins.
coins system of equations substitution -
Age Word Problems
Algebra Word Problems Using Systems of Equations
How to solve word problems about the ages of two people.
age system of equations substitution -
Symmetry of Polar Graphs
Precalculus Polar Coordinates and Complex Numbers
How to determine if the graph of a polar equation is symmetric about the x-axis.
polar graph polar equation symmetry reflection x axis symmetric about the x axis -
Graphing Radical Equations using Shifts
Algebra Radical Expressions and Equations
How to graph radical functions without making a table of values.
shift dilation -
Finding the Slope of a Line from an Equation
Algebra Linear Equations and Their Graphs
How to use the slope-intercept form of a line.
slope slope intercept form y intercept -
Graphing Equations by Making a Table of Values
Pre-Algebra Graphing in Two Dimensions
Graphing a line by making a table of values
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Finding the Slope of a Line from an Equation
Algebra 2 Graphs of Linear Equations
How to use the slope-intercept form of a line.
slope slope intercept form y intercept -
Applied Linear Equations: Mixture Problem
Algebra 2 Linear Equations
How to solve a mixture problem when the size difference between the two containers is known.
word problem mixture -
Applied Linear Equations: Investment Problem
Algebra 2 Linear Equations
How to solve an interest problem when given the total amount deposited.
word problem investment interest -
Applied Linear Equations: Tax Problem
Algebra 2 Linear Equations
How to solve a word problem about finding the tax on a purchase.
word problem tax -
Applied Linear Equations: Distance Problem
Algebra 2 Linear Equations
How to find the speed of transit when the time of two different legs is known.
distance rate time word problem -
Applied Linear Equations: Collection Problem
Algebra 2 Linear Equations
How to solve a word problem about how many dimes and quarters it takes to make a certain denomination.
collection change coins dimes quarter word problem denomination -
Applied Linear Equations: Consecutive Numbers
Algebra 2 Linear Equations
How to solve a problem involving consecutive integers.
consecutive numbers -
Find an Equation for the Sine or Cosine Wave
Trigonometry Trigonometric Functions
How to identify the graph of a stretched cosine curve.
sine cosine period amplitude intercepts turning points -
Find an Equation for the Sine or Cosine Wave
Precalculus Trigonometric Functions
How to identify the graph of a stretched cosine curve.
sine cosine period amplitude intercepts turning points -
Applied Linear Equations: Mixture Problem
Precalculus Linear Equations and Inequalities
How to solve a mixture problem when the size difference between the two containers is known.
word problem mixture -
Applied Linear Equations: Investment Problem
Precalculus Linear Equations and Inequalities
How to solve an interest problem when given the total amount deposited.
word problem investment interest
