document.write( "Question 965888: A graph of f(x)=ax^2+bx+c and its turning point is S(1;18).P and T are x-intercepts of f.The graph of g(x)=-2x+8 has an x-intercept at T.R is a point of intersection of f and g.What is the equation for f in the form of f(x)=ax^2+bx+c\r
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Algebra.Com's Answer #590340 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"f%28x%29=d%28x-1%29%5E2%2B18\"$
\n" ); document.write( "So then to find P and T,
\n" ); document.write( " $\"d%28x-1%29%5E2%2B18=0\"$
\n" ); document.write( " $\"d%28x-1%29%5E2=-18\"$
\n" ); document.write( " $\"%28x-1%29%5E2=-18%2Fd\"$
\n" ); document.write( " $\"x-1=0+%2B-+sqrt%28-18%2Fd%29\"$
\n" ); document.write( " $\"x=1+%2B-+sqrt%28-18%2Fd%29\"$
\n" ); document.write( "Also you can find T.
\n" ); document.write( " $\"-2x%2B8=0\"$
\n" ); document.write( " $\"2x=8\"$
\n" ); document.write( " $\"x=4\"$
\n" ); document.write( "So then you can find T.
\n" ); document.write( " $\"1%2Bsqrt%28-18%2Fd%29=4\"$
\n" ); document.write( " $\"sqrt%28-18%2Fd%29=3\"$
\n" ); document.write( " $\"-18%2Fd=9\"$
\n" ); document.write( " $\"d=-2\"$
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\n" ); document.write( " $\"f%28x%29=-2%28x-1%29%5E2%2B18\"$
\n" ); document.write( " $\"f%28x%29=-2%28x%5E2-2x%2B1%29%2B18\"$
\n" ); document.write( " $\"f%28x%29=-2x%5E2%2B4x-2%2B18\"$
\n" ); document.write( " $\"f%28x%29=+-2x%5E2%2B4x%2B16+\"$
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