// Numbas version: exam_results_page_options
{"name": "Question 19 function", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"functions": {}, "ungrouped_variables": ["a", "x", "b", "k"], "name": "Question 19 function", "tags": [], "preamble": {"css": "", "js": ""}, "advice": "<p>Don't be confused by the function stating $x=\\var{x}$. This just represents the default of the function. So if you type fun1(), the function will set $x=\\var{x}$ and return ${\\var{b*x}}$.</p>\n<p>a) Our function returns $\\var{b}\\times\\var{a}=\\var{a*b}$.</p>\n<p>b) We are given $k=\\var{k}$. Our function takes&nbsp;$\\var{b}\\times k =\\var{b*k}$ as input and returns $\\var{b*k}\\times\\var{b}=\\var{k*b*b}$.</p>", "rulesets": {}, "parts": [{"displayColumns": 0, "prompt": "<p>What is the value of $y$?</p>", "matrix": [0, 0, "1", 0], "shuffleChoices": false, "variableReplacements": [], "choices": ["<p>{x}</p>", "<p>{{x}*{b}}</p>", "<p>{{b}*{a}}</p>", "<p>{{x}*{a}}</p>"], "variableReplacementStrategy": "originalfirst", "maxMarks": "1", "distractors": ["", "", "", ""], "showCorrectAnswer": true, "scripts": {}, "marks": 0, "type": "1_n_2", "displayType": "radiogroup", "minMarks": 0}, {"displayColumns": 0, "prompt": "<p>What is the value of $z$?</p>", "matrix": ["1", 0, 0, 0], "shuffleChoices": false, "variableReplacements": [], "choices": ["<p>{{b}*{b}*{k}}</p>", "<p>{{b}*{k}}</p>", "<p>{{k}*{a}}</p>", "<p>{x}</p>"], "variableReplacementStrategy": "originalfirst", "maxMarks": "1", "distractors": ["", "", "", ""], "showCorrectAnswer": true, "scripts": {}, "marks": 0, "type": "1_n_2", "displayType": "radiogroup", "minMarks": 0}], "extensions": [], "statement": "<pre>&gt; fun1 = function(x={x}) {<br/>+         return({b}*x)<br/>+ }<br/>&gt; y = fun1({a})<br/>&gt; k = {k}  <br/>&gt; z = fun1({b}*k) </pre>", "variable_groups": [], "variablesTest": {"maxRuns": 100, "condition": ""}, "variables": {"a": {"definition": "random(5..10#1)", "templateType": "randrange", "group": "Ungrouped variables", "name": "a", "description": ""}, "x": {"definition": "random(-5..-1#1)", "templateType": "randrange", "group": "Ungrouped variables", "name": "x", "description": ""}, "k": {"definition": "random(2..4#1)", "templateType": "randrange", "group": "Ungrouped variables", "name": "k", "description": ""}, "b": {"definition": "random(2..4#1)", "templateType": "randrange", "group": "Ungrouped variables", "name": "b", "description": ""}}, "metadata": {"description": "", "licence": "Creative Commons Attribution 4.0 International"}, "type": "question", "contributors": [{"name": "Amy Chadwick", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/505/"}]}]}], "contributors": [{"name": "Amy Chadwick", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/505/"}]}