View of /trunk/rochester_problib/setAlgebra15Functions/srw2_1_1.pg

    1 #DESCRIPTION
    2 ##  Algebra problem: function definition
    3 ##ENDDESCRIPTION
    4 
    5 ##KEYWORDS('algebra', 'function', 'definition')
    6 
    7 DOCUMENT();        # This should be the first executable line in the problem.
    8 
    9 loadMacros(
   10 "PG.pl",
   11 "PGbasicmacros.pl",
   12 "PGchoicemacros.pl",
   13 "PGanswermacros.pl",
   14 "PGgraphmacros.pl"
   15 );
   16 
   17 TEXT(beginproblem());
   18 
   19 $showPartialCorrectAnswers = 1;
   20 
   21 $a = random(2,25,1);
   22 $b = random(2,25,1);
   23 
   24 BEGIN_TEXT
   25 Express the rule "Multiply by $a, then add $b" as the function
   26 $BR$BR
   27 \(f(x)=\) \{ans_rule(15)\}.
   28 $BR
   29 END_TEXT
   30 
   31 $ans1 = "$a*x+$b";
   32 
   33 &ANS(fun_cmp($ans1));
   34 
   35 ENDDOCUMENT();        # This should be the last executable line in the problem.
   36