document.write( "Question 723390: how to determine the vertex and zeros of the equation y= 1/4(x+2)^2-5 \n" ); document.write( "
Algebra.Com's Answer #443156 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! how to determine the vertex and zeros of the equation y= 1/4(x+2)^2-5 \n" ); document.write( "---- \n" ); document.write( "The vertex in that form is (-2,-5) \n" ); document.write( "----- \n" ); document.write( "Zeros ?? \n" ); document.write( "If x = 0, y = 1-5 = -4 \n" ); document.write( "---- \n" ); document.write( "Solve: \n" ); document.write( "(1/4)(x+2)^2-5 = 0 \n" ); document.write( "(x+2)^2 = 20 \n" ); document.write( "x+2 = +-2sqrt(5) \n" ); document.write( "x = -2+2sqrt(5) or x = -2-2sqrt(5) \n" ); document.write( "--------------------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "--------------------- \n" ); document.write( " |