document.write( "Question 884093: Linear & Quadratic Functions\r
\n" ); document.write( "\n" ); document.write( "The zeros of a function f are the values of x for which f(x) = 0. In the problems, find (a) f(0); (b) the zeros of f\r
\n" ); document.write( "\n" ); document.write( "f(x) = 3x - 9
\n" ); document.write( "f(x) = 5x - 8
\n" ); document.write( "f(x) = x^2 - 8x + 15
\n" ); document.write( "f(x) = x^2 - 9x + 20
\n" ); document.write( "

Algebra.Com's Answer #533992 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
\"f%280%29+=+3%280%29+-+9=-9\"
\n" ); document.write( "\"+f%280%29+=+5%280%29+-+8-8\"
\n" ); document.write( "\"+f%280%29+=+%280%29%5E2+-+8%280%29+%2B+15=15\"
\n" ); document.write( "\"+f%280%29+=+%280%29%5E2+-+9%280%29+%2B+20=20\"
\n" ); document.write( ".
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\n" ); document.write( "\"0+=+3x+-+9\"
\n" ); document.write( "\"3x=9\"
\n" ); document.write( "\"x=3\"
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\n" ); document.write( "\"+0+=+5x+-+8\"
\n" ); document.write( "\"5x=8\"
\n" ); document.write( "\"x=8%2F5\"
\n" ); document.write( ".
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\n" ); document.write( "\"+0+=+x%5E2+-+8x+%2B+15\"
\n" ); document.write( "\"%28x-3%29%28x-5%29=0\"
\n" ); document.write( "Two solutions:
\n" ); document.write( "\"x-3=0\"
\n" ); document.write( "\"x=3\"
\n" ); document.write( "and
\n" ); document.write( "\"x-5=0\"
\n" ); document.write( "\"x=5\"
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\n" ); document.write( ".
\n" ); document.write( "\"0=x%5E2-9x%2B20\"
\n" ); document.write( "\"%28x-4%29%28x-5%29=0\"
\n" ); document.write( "Two solutions:
\n" ); document.write( "\"x-4=0\"
\n" ); document.write( "\"x=4\"
\n" ); document.write( "and
\n" ); document.write( "\"x-5=0\"
\n" ); document.write( "\"x=5\"
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