- #1
zebra1707
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Homework Statement
There are two parts to this problem.
On the curve 2x^2-5 lie two points P and Q. Let the abscissa of P be "x" and the abscissa of Q be "x+h". No numerical coordinates are given.
a) State the coordinates of P and Q.
b) Using these points find the gradient of the secant PQ
Homework Equations
The Attempt at a Solution
For the first part of the question I am assuming that the coordinates would be P (x, f(x)) and Q (x+h, f(x+h))
Now when it comes to finding the gradient of the secant - Can use a table to find a set of coordinates and then plug in the m = y2 - y1 / x2 - x1 ? Not should why the question would ask to use the above coordinates when the gradient of the secant is a different equation?
Could use some guidence on how I attack this problem. Many thanks.