Finding the Slope of a Line Expressed in Standard Form
Often when we are doing calculus, we have to find the slope of a line. I mean, the line that is tangent to a curve or function is the best estimator of that function when you are really close to the point of tangency. So it is worth knowing as much about lines, themselves, as we can.
In this pencast, Eric gets the slope of a line whose equation is expressed in standard form Ax + By + C = 0.
Comments
doc
September 15th, 2009 @ 11:12 am
this is a cool post
Justin Marini
September 16th, 2009 @ 6:08 pm
This is a good way to expand on point-slope form, although I am still a little confused about the part involving different forms of writing an equation. It makes perfect sense that they are equivalent, but it does not really expand on how and when one would use the different forms of the equation.
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