document.write( "Question 923777: I need help!\r
\n" ); document.write( "\n" ); document.write( "Use the definite integral to find the area between the x-axis and f(x) over the indicated interval. Check first to see if the graph crosses the x-axis in the given interval.\r
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\n" ); document.write( "\n" ); document.write( "f(x)=9−x2; \r
\n" ); document.write( "\n" ); document.write( "[−1,6]
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Algebra.Com's Answer #560307 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
f(x) crosses the x-axis at x = 3. f is positive on [-1, 3) and negative on (3, 6].\r
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\n" ); document.write( "\n" ); document.write( "And you can simplify the rest.
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