document.write( "Question 212978: given the function defined by y=-7x^2+3x-8
\n" );
document.write( "determine whether function opens upward or downward \n" );
document.write( "
Algebra.Com's Answer #160885 by vleith(2983)![]() ![]() ![]() You can put this solution on YOUR website! downward, the high order coeefficient (-7 on the x^2 term) is negative. So it must open down. \n" ); document.write( "See this URL for a plot --> http://www.wolframalpha.com/input/?i=-7x^2%2B3x-8 \n" ); document.write( " \n" ); document.write( " |