document.write( "Question 1125443: The gradient of the curve y = ax to the power 2 is equal to - 4 at the point where x=2. The value of a is......? \n" ); document.write( "

Algebra.Com's Answer #741787 by ikleyn(52814) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( " I read and understand the problem differently from the tutor @Theo.\r
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\n" ); document.write( "\n" ); document.write( " Correspondingly, my solution is different.\r
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document.write( "The given function is  f(x) = .\r\n" );
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document.write( "Its gradient is the derivative  f'(x) = 2ax.\r\n" );
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document.write( "The value of the gradient at the point x= 2  is -4:  f'(2) = 2*a*2 = -4,\r\n" );
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document.write( "which implies  a= -1.\r\n" );
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document.write( "Answer.  The value of  \"a\"  is  -1.\r\n" );
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