Friday, January 8, 2010

How do i calculate the gradient of a tangent?

We are not given the function of the graph, and there are several tangents. Am i able to use y2-y1 divided by x2-x1, and use 2 tangents. i dont get it!!!How do i calculate the gradient of a tangent?
Hi,





Gradient of a tangent = (y2 - y1) / (x2 - x1)





Example:





Given 2 points (1,3) and (4,6), calculate the gradient of a tangent line that passes through both points.





Gradient = (y2 - y1) / (x2 - x1)





Gradient = (6 - 3) / (4 - 1)





Gradient = 3 / 3





Gradient = 1





Hope this helps!


JHow do i calculate the gradient of a tangent?
gradient of a tangent= tan theta,..angle of the tangent determines its slope
You're right ... That's exactly how you can do it ... use the formula for slope like you've got and then just choose any two convenient points that lie on the tangent and subs their coordinates into the formula.





Do that for each of the tangents you're given.

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