document.write( "Question 194982: I have four questions.\r
\n" );
document.write( "\n" );
document.write( "1) Find and label the vertex and the line of symetry f(x)=1/3x^2\r
\n" );
document.write( "\n" );
document.write( "2) Find the line of symetry f(x)=(x+2)^2\r
\n" );
document.write( "\n" );
document.write( "3) Nature of the solutions x^2-6=0 I say 2 real solutions am I correct?\r
\n" );
document.write( "\n" );
document.write( "4) Number of tickets sold each day is given by N(x)=-0.3x^2 +7.2x+14 where x is the number of days since the show was announced. When will the daily tickets sales peak? How many tickets will be sold on the first day?\r
\n" );
document.write( "\n" );
document.write( "Thanks in advance \n" );
document.write( "
Algebra.Com's Answer #146293 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 1) Find and label the vertex and the line of symetry f(x)=1/3x^2 \n" ); document.write( "x^2 = 3y \n" ); document.write( "(x-0)^2 = 3(y-0) \n" ); document.write( "Vertex is (0,0) \n" ); document.write( "Axis of symmetry is x = 0 \n" ); document.write( "============================================== \n" ); document.write( "2) Find the line of symetry f(x)=(x+2)^2 \n" ); document.write( "(x+2)^2 = y-0 \n" ); document.write( "Since vertex is (-2,0), the axis of symmetry is x = -2 \n" ); document.write( "============================================== \n" ); document.write( "3) Nature of the solutions x^2-6=0 I say 2 real solutions am I correct? \n" ); document.write( "x = sqrt(6) and x = -sqrt(6) \n" ); document.write( "Two Real Number solutions. \n" ); document.write( "============================================== \n" ); document.write( "4) Number of tickets sold each day is given by N(x)=-0.3x^2 +7.2x+14 where x is the number of days since the show was announced. \n" ); document.write( "When will the daily tickets sales peak? \n" ); document.write( "max occurs at x = -b/2a = -7.2(2*-0.3) = 12 \n" ); document.write( "Peak sales 12 days after the show was announced. \n" ); document.write( "-------------------------------------------------------\r \n" ); document.write( "\n" ); document.write( "How many tickets will be sold on the first day? \n" ); document.write( "N(0) = 14 \n" ); document.write( "=============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |