From Ramanujan to calculus cocreator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to work with linear, quadratic and exponential models.
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How To: Use ">" (greater than) and "<" (less than) symbols

How To: Remember "greater than" & "less than" symbols

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Spend Money on a Graphing Calculator? Nah—Just Use This WebBased TI Emulator

How To: Find a number given Its percent

How To: Calculate the area of a parallelogram

How To: Find the slope of a line given 2 points with fractions

How To: Convert Fahrenheit to Celsius with a formula

How To: Find and sketch the domain of a multivariable function

How To: Find the area of a rectangle

How To: Find the Percent Given Two Numbers

How To: Calculate Faster Than a Calculator

How To: Find the area of a parallelogram using geometry

How To: Find a missing side of a triangle, similar to another

How To: Find a missing coordinate given: coordinate & equation

How To: Simplify fourth roots

How To: Do long division without a calculator

How To: Calculate the height and volume of a pyramid

How To: Solve for the missing ratios or proportions

How To: Cancel out in basic algebra

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Remember "greater than" & "less than" symbols

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Spend Money on a Graphing Calculator? Nah—Just Use This WebBased TI Emulator

How To: Find a number given Its percent

How To: Calculate the area of a parallelogram

How To: Find the slope of a line given 2 points with fractions

How To: Convert Fahrenheit to Celsius with a formula

How To: Find and sketch the domain of a multivariable function

How To: Find the area of a rectangle

How To: Find the Percent Given Two Numbers

How To: Calculate Faster Than a Calculator

How To: Find the area of a parallelogram using geometry

How To: Find a missing side of a triangle, similar to another

How To: Find a missing coordinate given: coordinate & equation

How To: Simplify fourth roots

How To: Do long division without a calculator

How To: Calculate the height and volume of a pyramid

How To: Solve for the missing ratios or proportions

How To: Cancel out in basic algebra
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