My Math Forum gradient of y= -2x +8 ??

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 December 15th, 2012, 06:07 AM #1 Newbie   Joined: Dec 2012 Posts: 8 Thanks: 0 gradient of y= -2x +8 ?? Anyone know what the gradient means? Does it just simply mean the SLOPE (-2/1) ?? OR is it reffering to something else? If so, any info would be helpful. I did a quick search on wikipedia and Im stil stumped. THANKS!!
 December 15th, 2012, 07:02 AM #2 Senior Member     Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 521 Math Focus: Calculus/ODEs Re: gradient of y= -2x +8 ?? Yes, gradient and slope refer to the same thing with regards to functions.
 December 15th, 2012, 12:25 PM #3 Math Team   Joined: Sep 2007 Posts: 2,409 Thanks: 6 Re: gradient of y= -2x +8 ?? Note that for linear equations the "gradient" (I would say "derivative") is a constant and is the same as the slope of the line. For non-linear equations, the derivative at every point is equal to the slope of the tangent line at that point. That's some times used as the definition of "gradient".

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