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SteamKing said:The height of the beam at a distance x from point A is given by the relation h(x) = 2 +(x/L)
You can use this relation to check the given heights of the beam at A and B, which are 2 in and 3 in, respectively.
The relation is already developed and given to you. I suspect the problem is asking you to do something besides developing this relation.
AlephZero said:If you draw the graph of h against x, it is straight line.
So the relationship is the equation of the straight line through the points (0,ha) and (L,hb).
Plug the values into the standard equation for a line in the form (y-y0) = m(x-x0).
x0 = 0, y0 = ha, and the slope m = (hb-ha)/L.