Unformatted text preview: WM.— A 65, east 5. Let f be the function given by f (x) = 9"“, and let g be the function given by g(x) = kx, where k
is the nonzero constant such that the graph of f is tangent to the graph of g. (a) Find the xcoordinate of the point of tangency and the value of k. (b) Let R be the region enclosed by the yaxis and the graphs of f and g. Using the results found in
part (a), determine the area of R. (c) Set up, but do not integzate, an integral expression in terms of a single variable for the volume of
the solid generated by revolving the region R, given in part (b), about the x~axis. W
a.) At Paint a? ﬁn em 3 1'.) Hit) = 30.4) EndajF'U): 3'01) £53 3"" = ﬁx amt me“ = 191 1992 AB5(BC2) ...
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