document.write( "Question 1099398: Tutor please help me with Y=2x^+4x.. Draw a graph showing the coordinates of the turning point \n" ); document.write( "
Algebra.Com's Answer #713900 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Y = 2x^2 + 4x \n" ); document.write( "A quadratic equation, min occurs on the axis of symmetry which we can find: \n" ); document.write( "x = -b/(2a), where a=2 and b=4 \n" ); document.write( "x = \n" ); document.write( "x = -1 is axis of symmetry \n" ); document.write( "Find y when x=1 \n" ); document.write( "y = 2(-1^2) + 4(-1) \n" ); document.write( "y = 2 - 4 \n" ); document.write( "y = -2 \n" ); document.write( "coordinates of the turning point -1,-2 \n" ); document.write( "Graphing the equation shows the same thing\r \n" ); document.write( "\n" ); document.write( " |