document.write( "Question 1157403: f(x)=-3x^2+3x-2
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\n" ); document.write( "b. vertex = (-0.5,-2.75)
\n" ); document.write( "c axis of symmetry x=-0.5
\n" ); document.write( "d. show algebraically how you know the function has no x-intercepts - it does x-intercepts of -1.457 and 0.457
\n" ); document.write( "e internal where it is increasing and decreasing
\n" ); document.write( " Decreasing (-inf, -0.5) Increasing (0.5, inf) \n" ); document.write( "

Algebra.Com's Answer #780264 by ikleyn(52756) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "(a)  Opens downward  (since the leading coefficient is negative).\r\n" );
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document.write( "(b)  Vertex  x =  = 0.5.\r\n" );
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document.write( "             y = -3*0.5^2 + 3*(0.5) - 2 = -1.25.\r\n" );
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document.write( "(c)  axis of symmetry:  x = 0.5.\r\n" );
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document.write( "(d)  It is opened downward and has negative maximum  --- H E N C E, there is NO x-intercepts.\r\n" );
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document.write( "     It is clear LOGICALLY and VISUALLY, but if you want algebraic confirmation, calculate the DISCRIMINANT of the equation\r\n" );
document.write( "     to assure that it is NEGATIVE.\r\n" );
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document.write( "(e)  increases at (-oo,0.5).  Decreases at (0.5,oo).\r\n" );
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document.write( "As you see, my answers ALL are opposite to yours.\r\n" );
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document.write( "All answers in your post are INCORRECT.   (All means EACH and EVERY).\r\n" );
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