[npl] / trunk / NationalProblemLibrary / ASU-topics / setGraphEquations / srw1_8_73.pg Repository: Repository Listing bbplugincoursesdistsnplrochestersystemwww

# View of /trunk/NationalProblemLibrary/ASU-topics/setGraphEquations/srw1_8_73.pg

Sun Aug 6 16:12:44 2006 UTC (6 years, 9 months ago) by jjholt
File size: 1117 byte(s)
```Added tags.  --JH
```

```    1 ## DESCRIPTION
2 ## Algebra
3 ## ENDDESCRIPTION
4
5 ## KEYWORDS('algebra','conic section','circle')
6 ## Tagged by cmd6a 6/21/06
7
8 ## DBsubject('Algebra')
9 ## DBchapter('Conic Sections')
10 ## DBsection('Circles')
11
12 ## Date('')
13 ## Author('')
14 ## Institution('ASU')
15 ## TitleText1('')
16 ## EditionText1('')
17 ## AuthorText1('')
18 ## Section1('')
19 ## Problem1('')
20
21 DOCUMENT();        # This should be the first executable line in the problem.
22
24 "PG.pl",
25 "PGbasicmacros.pl",
26 "PGchoicemacros.pl",
28 "PGauxiliaryFunctions.pl",
29 "PGasu.pl"
30 );
31
32 TEXT(beginproblem());
33
35
36 \$a = random(1,20,1);
37 \$b = random(1,20,1);
38 \$c = random(1,6,1);
39
40 BEGIN_TEXT
41 Find an equation of the circle with center \((\$a,-\$b)\) and radius \(\$c\)
42 in the form of \[(x-A)^2+(y-B)^2=C^2\]
43 where \(A\), \(B\), and \(C\) are constants. Then
44 \$BR \$BR
45 \(A =\)  \{ans_rule(10)\}
46 \$BR
47 \(B =\)  \{ans_rule(10)\}
48 \$BR
49 \(C =\)  \{ans_rule(10)\}
50 END_TEXT
51
52 ANS(num_cmp(\$a));
53 ANS(num_cmp(-\$b));
54 ANS(pc_evaluator([[num_cmp(-\$c),1], [num_cmp(\$c), 1]]));
55
56 ENDDOCUMENT();        # This should be the last executable line in the problem.
```