document.write( "Question 110773: Can you help? \r
\n" );
document.write( "\n" );
document.write( "Given the function: f(x) = -3(x + 2)2 (squared), find the vertex, axis of symmetry, and determine whether the f(x) has a minimum or maximum point.\r
\n" );
document.write( "\n" );
document.write( "Thank you. \n" );
document.write( "
Algebra.Com's Answer #80748 by edjones(8007)![]() ![]() You can put this solution on YOUR website! Without doing any math we can answer all these questions. \n" ); document.write( "x=-2 is the only answer. The axis of symmetry is also -2. \n" ); document.write( "The vertex is (-2,0). And it has a maximum. \n" ); document.write( "How do we know this? (x+2)^2=0 at the x intercept. \n" ); document.write( "The answer is x=-2, x=-2. \n" ); document.write( "So the vertex touches the y=0 line. \n" ); document.write( "Does it point up or down? \n" ); document.write( "Up. How do we know that? -3 is a negative number. If a is a negative number we have a maximum. \n" ); document.write( "Ed \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |