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Mastering Desmos for the Digital SAT
Introduction to Desmos
What is the Desmos Graphing Calculator?
How Desmos Is Different from a Physical Calculator
Desmos Integration into the New Digital SAT App
How to Get the Most Out of This Course
Deciding Whether To Use Desmos To Solve a Problem
Limitations on the Digital SAT's Integrated Desmos Calculator
Demonstrations of Desmos-Aided SAT Problem Solving
What's this Section About?
Solving an Equation for a Variable
Linear Equations in Slope-Intercept Form
Solving Systems of Linear Equations
Linear Inequalities
Systems of Linear Inequalities
Finding Solutions of a Quadratic Equation
Solving Mixed Systems
Attributes of Parabolas
Percentages
Forming Exponential Equations
Scatterplots and Lines of Best Fit
Finding the Attributes of a Data Set
Setting Up and Working In the Desmos Graphing Calculator Workspace
Launching Desmos
Creating a Desmos Account—Or Not
Desmos's Weird Graph URL Behavior
Creating, Opening, Editing, Saving, Recovering, Bookmarking, Sharing, and Embedding Graphs
Input and Display Areas and Controls
Basic Graph Area Settings
Radians or Degrees?
Interacting with the Graph Area
Exposing "Interesting" Points on Graphs
When You Need an Interesting Point and Desmos Holds Out on You
Entering and Manipulating Items in Desmos: The Essentials
Solving Equations
Entering Mathematical Terms
More on Entering Fractions
The Essential Graphing Variables: x and y
Placing Conditions on Graphs
General-Purpose User Variables
Special Non-Coordinate Variables and Reserved Constants
Solving Proportions
The Equals Sign: Chameleon of Desmos
Points
Sliders, Bounds, and Steps
Tables
Entering and Using Functions
Useful Built-In Functions
Lists
Percentages
Reducing Fractions to Lowest Terms
Converting Between Decimal and Fractional Representations
Using Regression to Find Equations of Lines and Curves
Advanced Regression Concepts and Solving Techniques
Copying/Pasting
Equivalent Expressions
Solving for a Relationship
Finding the Slope of Any Linear Equation
Notes
Folders
Foundations
Solving Equations/Isolating Variables
Substitution
Solving for Expressions
Combining Like Terms
Unknown Values in Denominators
Slope-Intercept Form of Linear Equations
Finding Slope
Finding the Slope-Intercept Equation for a Graph
Finding the Graph for a Slope-Intercept Equation
Finding the y-Intercept of a Line Given Points
Finding the Equation of a Line or Function from a Table or Set of Points
Finding the y-Coordinate of a Point on a Line Given Two Other Points
Standard Form of Linear Equations
Finding the Standard Form Equation for a Graph
Finding the Slope and/or Intercepts of a Standard Form Equation
Working with Parallel Lines
Finding the Equation of a Perpendicular Line
Finding a Coefficient in a Standard Form Equation
Systems of Linear Equations
Identifying Graphs of Systems of Linear Equations
Solving Systems of Linear Equations
Finding Equations of Parallel Lines
Determining the Number of Solutions to a System of Linear Equations
Linear Inequalities and Absolute Value
Finding Solutions for Simple One-Dimensional Linear Inequalities
Finding Solutions for Two-Dimensional Linear Inequalities
Solving Compound (Double) Inequalities
Solving Systems of Linear Inequalities
Finding a Minimum or Maximum Coordinate Value of a Solution to a System of Linear Inequalities
Solving Absolute Value Problems
Exponents and Radicals/Roots
Identifying Equivalent Expressions
Solving for an Unknown in an Exponential Equation
Polynomials
Identifying Equivalent Polynomial Expressions
Solving for Unknowns in Polynomial Functions
Solving Quadratic Equations
Using Regression to Find Both Solutions to a Quadratic Equation
Finding Solutions to Quadratic Equations
Number of Solutions to Quadratic Equations
Solving Systems of Linear and Quadratic Equations
Extraneous Solutions and Dividing Polynomials
Phantom Equations and Extraneous Solutions
Rational Expressions/Functions
Selecting Equivalent Rational Expressions
Solving for a Constant in Equivalent Rational Expressions
Testing Possible Factors of a Polynomial
The Graphs of Quadratic Equations and Polynomials
Standard Form: General Shape of Graphs
Factored Form: Zeros of Polynomials
Maximums and Minimums
Determining the Equation of a Parabola Given a Set of Points
Attributes of Quadratic Forms
Ratios, Probability, and Proportions
Ratios
Probability
Proportions
Percentages
Basics of Percentage Calculations
Percentage Word Problems
Percent Increase/Percent Decrease
Determining Percentage Change
Solving Compound Percentage Problems
Mixtures and Concentrations
Exponential Relationships
Solving Exponential Equations
Graphs of Exponential Equations/Functions
Identifying an Exponential Equation Based on a Set of Values or Points
Scatterplots and Line Graphs
Identifying Equations of Lines of Best Fit
Identifying Graphs of Point Motion
Functions
Evaluating Functions
Shifting Functions
Statistics
Finding the Median of a Data Set
Finding Values Within the Margin of Error
Working with the Mean
Finding the Range of a Data Set
Computing Standard Deviation: Don't Bother
Unit Conversions
Unit Conversions using Proportions
Angles, Triangles, and Trigonometry
Using and Finding Trigonometric Ratios
Converting Between Radians and Degrees
Finding Side Lengths of Triangles
Circles and Volume
Calculating Arc Lengths and Circumferences
Area, Volume, and Density
Solving for an Unknown in an Exponential Equation
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