document.write( "Question 1149496: Suppose y=3t+5 and x=21t^2. Write a function f that determines y in terms of x. (Assume t≥0.)\r
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Algebra.Com's Answer #770835 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "You express  t =   and substitute it into the expression for \"y\"\r\n" );
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document.write( "    y =  + 5.      (1)    ANSWER\r\n" );
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document.write( "It works for positive (non-negative) \"x\".\r\n" );
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document.write( "You can transform the formula (1) into any other equivalent form.\r\n" );
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