Looking for a guide on how to figure out the slope of a line in basic algebra? 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 calculate a line's slope in basic algebra.
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How To: Find the area & perimeter of triangles & squares

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How To: Find the formula of a piecewise function given a graph

How To: Find the volume of a sphere with radius r

How To: Sketch the graph of a piecewise function

How To: Find the Percent Given Two Numbers

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How To: Find density using the water displacement method
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