document.write( "Question 995047: Identify the vertex, axis of symmetry , y-intercept, x-intercepts, and opening of each parabola, then sketch the graph.\r
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Algebra.Com's Answer #613910 by josgarithmetic(39620) $\"\"$ $\"About$

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The parabolic function is already in standard form, so all that information asked is easy to find. Intercepts on x you solve for f(x)=0. Vertex and symmetry axis, you just read from the function definition. Leading coefficient will be $\"1\"$ , so parabola opens upward.\r
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document.write( "vertex                  (-1,-9)\r\n" );
document.write( "axis of symmetry         x=-1\r\n" );
document.write( "roots                   -4  and  +2\r\n" );
document.write( "y-intercept             evaluate f(0).  y=-8 where x=0,.\r\n" );
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\n" ); document.write( "\n" ); document.write( "You have enough information, or data, to make a sketch of the graph. \n" ); document.write( "

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