document.write( "Question 255522: Identify the vertex and the y-intercept of the graph of the function y = -3(x + 2)^2 + 5 \n" ); document.write( "
Algebra.Com's Answer #187750 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Identify the vertex and the y-intercept of the graph \n" ); document.write( "of the function y = -3(x + 2)^2 + 5 \n" ); document.write( "---------------- \n" ); document.write( "The function is in the vertex form y = a(x-h)^2+k \n" ); document.write( "where the vertex is (h,k). \n" ); document.write( "--- \n" ); document.write( "Your problem: vertex is (-2,5) \n" ); document.write( "When x = zero, y = -3*2*2+5 = -7 \n" ); document.write( "so the y-intercept is (0,-7. \n" ); document.write( "---- \n" ); document.write( "Since a = -3 is negative the parabola opens downward. \n" ); document.write( "------------------------------------------------ \n" ); document.write( " \n" ); document.write( "====================================================== \n" ); document.write( "Cheers, \n" ); document.write( "stan H. \n" ); document.write( " |