document.write( "Question 1101049: what is the equation of the function which has a graph that is the reflection across the x-axis of the graph of f(x)=x^2+2x-5 ? \n" ); document.write( "

Algebra.Com's Answer #715648 by ikleyn(52797) $\"\"$ $\"About$

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\n" ); document.write( "what is the equation of the function which has a graph that is the reflection across the x-axis of the graph of f(x) = x^2+2x-5 ?
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document.write( "The function for the reflected graph is\r\n" );
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document.write( "g(x) = - f(x):   you only need to change the sign at the function to the opposite one.\r\n" );
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document.write( "So,  g(x) = -(x^2+2x-5) = -x^2 - 2x + 5.\r\n" );
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\n" ); document.write( "\n" ); document.write( "It is how the reflection about the x-axis works: (x,y) ----> (x,-y).\r
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