document.write( "Question 1067900: Use the four-step process to find the slope of the tangent line to the graph of the given function at any point.\r \n" );
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document.write( "f(x) = −10x^2 + 4x\r \n" );
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document.write( "step 1: f(x + h) = \n" );
document.write( "Step 2:f(x + h) − f(x) = \n" );
document.write( "step 3:f(x+h)-f(x)/h = \n" );
document.write( "step 4: f '(x) = lim h → 0 f(x + h) − f(x)/h = \n" );
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