document.write( "Question 814590: Please help me sketch the following function but first determine the critical points.
\n" ); document.write( "F (x)=x^2-2x-3: xintercepts, y-intercepts and vertex \n" ); document.write( "
Algebra.Com's Answer #490391 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( "See highlighted
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document.write( "Note: the vertex form of a parabola is, \"y=a%28x-h%29%5E2+%2Bk\" 
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document.write( "where(h,k) is the vertex
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document.write( "F(x)=x^2-2x-3    |Completing the Square
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document.write( "F(x)=(x-1)^2 -1 - 3
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document.write( "F(x)=(x-1)^2 - 4    \"highlight%28V%281%2C-4%29%29\" and If x = 0  then y = -3
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document.write( "If (x-1)^2 - 4 = 0 , x = 1  ±\"sqrt%284%29\"= 1  ± 2   , x =  -1, 3
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