document.write( "Question 709128: Please help me solve these equations please! Thank you! \r
\n" ); document.write( "\n" ); document.write( "Let f(x)= 2x+3 and g(x)=x^2-x Find Each Value\r
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\n" ); document.write( "\n" ); document.write( "Problem 1: (f+g)(1/2)\r
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\n" ); document.write( "\n" ); document.write( "Problem 2: (f*g)(1)\r
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\n" ); document.write( "\n" ); document.write( "Problem 3:(f/g)(2)\r
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\n" ); document.write( "\n" ); document.write( "Problem 4: (f of g) (5)
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Algebra.Com's Answer #436395 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
Using just #3 as an example:\r
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\n" ); document.write( "\n" ); document.write( "You want the function which is the ratio of f to g, and then evaluate at x=2.\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%29%2Fg%28x%29=%282x%2B3%29%2F%28x%5E2-x%29\"
\n" ); document.write( "and for x=2, evaluate this:
\n" ); document.write( "\"%28f%2Fg%29%282%29=%282%2A2%2B3%29%2F%282%5E2-2%29\"
\n" ); document.write( "and you can finish that.\r
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\n" ); document.write( "\n" ); document.write( "Problem #4 is composition of functions. g(x) is used as input to f(x), and the result is to be evaluated at x=5.\r
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\n" ); document.write( "\n" ); document.write( "f(g(x))=2()+3,.... not finished. We want to put g(x) into the missing parentheses position...
\n" ); document.write( "\"f%28g%28x%29%29=2%28x%5E2-x%29%2B3\"
\n" ); document.write( "=\"2x%5E2-2x%2B3\" --------we could use either form of the function.
\n" ); document.write( "NOW use x=5 and evaluate f(g(5)).
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