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 graph and solve linear inequalities in two variables in algebra.
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How To: Remember "greater than" & "less than" symbols

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How To: Do long division without a calculator

How To: Find a number given Its percent

How To: Calculate the area of a parallelogram

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

How To: Calculate Faster Than a Calculator

How To: Translate a shape

How To: Find the area of a triangle when given 2 sides & angle

How To: Divide small numbers by big numbers

How To: Solve an equation with a radical under a radical

How To: Calculate percent composition for chemistry

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

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

How To: Find the area of an oblique triangle using formulas

How To: Write a logarithm as a sum or difference of logarithms

How To: Find density using the water displacement method

How To: Find the x & y intercepts of rational functions

How To: Find a missing angle in a parallelogram

How To: Write a sum/difference of logarithms as a logarithm

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

How To: Find the Percent Given Two Numbers

How To: Do long division without a calculator

How To: Find a number given Its percent

How To: Calculate the area of a parallelogram

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

How To: Calculate Faster Than a Calculator

How To: Translate a shape

How To: Find the area of a triangle when given 2 sides & angle

How To: Divide small numbers by big numbers

How To: Solve an equation with a radical under a radical

How To: Calculate percent composition for chemistry

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

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

How To: Find the area of an oblique triangle using formulas

How To: Write a logarithm as a sum or difference of logarithms

How To: Find density using the water displacement method

How To: Find the x & y intercepts of rational functions

How To: Find a missing angle in a parallelogram

How To: Write a sum/difference of logarithms as a logarithm
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