document.write( "Question 694194: what is the vertex, axis of symmetry, and direction of opening for y=x^2-18x+79? \n" ); document.write( "
Algebra.Com's Answer #427927 by lwsshak3(11628)\"\" \"About 
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what is the vertex, axis of symmetry, and direction of opening for
\n" ); document.write( "y=x^2-18x+79?
\n" ); document.write( "complete the square
\n" ); document.write( "y=(x^2-18x+81)+79-81
\n" ); document.write( "y=(x-9)^2-3
\n" ); document.write( "This is an equation of a parabola that opens upwards. (lead coefficient positive)
\n" ); document.write( "Its standard form: y=A(x-h)^2+k, (h,k)=(x,y) coordinates of the vertex.
\n" ); document.write( "For given equation: y=(x-9)^2-3
\n" ); document.write( "vertex:(9,-3)
\n" ); document.write( "Axis of symmetry: x=9
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