document.write( "Question 1104204: 10. Consider f(x) = x^2+qx+r. The graph of f has a minimum value when x= -1.5.
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document.write( "The distance between the two zeros of f is 9.
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document.write( "a. Show that the two zeros of f is 9.
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document.write( "b. Find the value of q and of r.
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Algebra.Com's Answer #718942 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "If the function has a minimum value when x=-1.5, then x=-1.5 is the axis of symmetry. \n" ); document.write( "Then if the distance between the two zeros is 9, the two zeros are 9/2=4.5 units either side of the axis of symmetry; so the two zeros are -6 and +3. \n" ); document.write( "I'm guessing that is what the first question was supposed to be asking: \n" ); document.write( "a. The two roots are -6 and 3. \n" ); document.write( "Since the two roots are -6 and 3, the equation is \n" ); document.write( " \n" ); document.write( "so \n" ); document.write( "b. q=3; r = -18 \n" ); document.write( " |