document.write( "Question 254907: i do not understand how to put an equation into a graphing calculator. The problem i am working on asks how you would put this in to graph an ellipse
\n" ); document.write( "9x^2+25y^2=225
\n" ); document.write( "but i dont know what how to do it on a calculator
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Algebra.Com's Answer #187200 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
In order to graph, you need to solve for y\r
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\n" ); document.write( "\n" ); document.write( "\"9x%5E2%2B25y%5E2=225\" Start with the given equation.\r
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\n" ); document.write( "\n" ); document.write( "\"25y%5E2=225-9x%5E2\" Subtract \"9x%5E2\" from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"y%5E2=%28225-9x%5E2%29%2F25\" Divide both sides by 25.\r
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\n" ); document.write( "\n" ); document.write( "\"y=%22%22%2B-sqrt%28%28225-9x%5E2%29%2F25%29\" Take the square root of both sides (don't forget about the plus/minus)\r
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\n" ); document.write( "\n" ); document.write( "\"y=sqrt%28%28225-9x%5E2%29%2F25%29\" or \"y=-sqrt%28%28225-9x%5E2%29%2F25%29\" Break up the plus/minus to form two separate equations.\r
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\n" ); document.write( "\n" ); document.write( "So the two equations that you would enter into your calculator would be \"y=sqrt%28%28225-9x%5E2%29%2F25%29\" and \"y=-sqrt%28%28225-9x%5E2%29%2F25%29\"\r
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\n" ); document.write( "\n" ); document.write( "If you enter them in, you should get the graph:\r
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\n" ); document.write( "\n" ); document.write( "Take note that the red graph is \"y=sqrt%28%28225-9x%5E2%29%2F25%29\" and the green graph is \"y=-sqrt%28%28225-9x%5E2%29%2F25%29\" which both form the graph of \"9x%5E2%2B25y%5E2=225\"
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