document.write( "Question 1163296: At what point(s) on the curve f (x) = 2 - 4x^3 does the function have a perpendicular slope of 3?
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Algebra.Com's Answer #787361 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "I suspect you mean at which points on the graph of does the graph have a normal with a slope equal to 3?\r
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\n" ); document.write( "\n" ); document.write( "A normal to a curve is perpendicular to a tangent to the curve. Perpendicular lines have negative reciprocal slopes. So take the first derivative of your function and set that function equal to . Since you are dealing with a cubic polynomial, one would expect the derivative to be a quadratic with two zeros.
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\n" ); document.write( "John
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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