document.write( "Question 1082845: Write an equation of a quadratic function given the vertex and another point on the graph.\r
\n" ); document.write( "\n" ); document.write( "Vertex: (–5, –10)\r
\n" ); document.write( "\n" ); document.write( "Point: (0, 15) \n" ); document.write( "
Algebra.Com's Answer #696920 by MathTherapy(10552)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Write an equation of a quadratic function given the vertex and another point on the graph.\r
\n" ); document.write( "\n" ); document.write( "Vertex: (–5, –10)\r
\n" ); document.write( "\n" ); document.write( "Point: (0, 15)
\n" ); document.write( "
Vertex form of a quadratic equation: \"y+=+a%28x+-+h%29%5E2+%2B+k\"
\n" );
document.write( "\"15+=+a%280+-+-+5%29%5E2+-+10\" ------ Substituting (0, 15) for (x, y), and (- 5, - 10) for (h, k)
\n" );
document.write( "15 = 25a - 10
\n" );
document.write( "15 + 10 = 25a
\n" );
document.write( "\"matrix%281%2C5%2C+25%2F25%2C+%22=%22%2C+a%2C+%22=%22%2C+1%29\"
\n" );
document.write( "\"highlight_green%28matrix%281%2C3%2C+y%2C+%22=%22%2C+%28x+%2B+5%29%5E2+-+10%29%29\" ------ Substituting 1 for a, and (- 5, - 10) for (h, k) \n" );
document.write( "
\n" );