document.write( "Question 1014918: Describe the graph of the following quadratic functions and provide a real life example of each:
\n" ); document.write( "A) a function with two real roots
\n" ); document.write( "B) a function with one real root
\n" ); document.write( "C) a function with two complex roots \r
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Algebra.Com's Answer #631490 by macston(5194)\"\" \"About 
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A) a function with two real roots
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\n" ); document.write( "\"f%28x%29=x%5E2-4%29\"
\n" ); document.write( "Graph crosses x axis twice.
\n" ); document.write( "(blue line on graph below)
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\n" ); document.write( "B) a function with one real root
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\n" ); document.write( "\"f%28x%29=x%5E2\"
\n" ); document.write( "Graph just touches x axis once (vertex on x axis)
\n" ); document.write( "(Green line on graph below)
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\n" ); document.write( "C) a function with two complex roots
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\n" ); document.write( "\"f%28x%29=x%5E2%2B4\"
\n" ); document.write( "Graph does not touch or cross x axis.
\n" ); document.write( "(Red line on graph below)
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\n" ); document.write( "GRAPH:
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\n" ); document.write( "\"+graph%28+800%2C+800%2C+-10%2C+10%2C+-10%2C+10%2C+x%5E2%2B4%2C+x%5E2%2C+x%5E2-4%29+\"
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