document.write( "Question 145727: How do you find the vertex, axis of symmetry and graph: f(x) -x^2-6x+3, in the back of my math book it says the vertex is (-3,12) i keep getting (-3,-6) Thanx :) \n" ); document.write( "
Algebra.Com's Answer #106353 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! find the vertex, axis of symmetry and graph: f(x)= -x^2-6x+3, in the back of my math book it says the vertex is (-3,12) i keep getting (-3,-6) \n" ); document.write( "--------------- \n" ); document.write( "Vertex occurs where x = -b/2a = 6/-2 = -3 \n" ); document.write( "f(-3) = -(-3)^2-6(-3)+3 = -9+18+3 = 12 \n" ); document.write( "--------- \n" ); document.write( "Vertex at (-3,12) \n" ); document.write( "Axis at x = -3 \n" ); document.write( "---------- \n" ); document.write( " \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |