document.write( "Question 1176224: a) Determine the general equation, in simplified form, for the slope of the secant line on the graph of f(x) = x^2 between the point with x-coordinate a = 3, and the point (a + h, f(a + h)). Do not use a specific value of h.\r
\n" ); document.write( "\n" ); document.write( "b) Use the result of part a) to estimate the slope of the tangent line at the point with x-coordinate 3.
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Algebra.Com's Answer #802697 by Boreal(15235)\"\" \"About 
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(3, 9) and (3+h, 9+6h+h^2)
\n" ); document.write( "the slope is 6h+h^2/h
\n" ); document.write( "which is 6+h\r
\n" ); document.write( "\n" ); document.write( "At x=3, the slope would be 6+h and as h approaches 0, the slope approaches 6.
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