document.write( "Question 637406: Good day tutors, I need your help with this function\r
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Algebra.Com's Answer #401641 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "f(x)= -3x^2 + 5x 
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document.write( "f '(x) = -6x + 5, when x = -1   ⇒    f '(-1) =
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document.write( "y = mx + b (representing the Line tangent to the curve at x = -1)
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document.write( "y = 11x + b    |Using Pt(-1,-8) to solve for b
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document.write( "-8 = 11 + b
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document.write( "3 = b
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document.write( "y = 11x + 3 is the line tangent ro the cureve at (-1,-8)\r
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