// Numbas version: exam_results_page_options
{"name": "Q22", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"variables": {"Choice3": {"definition": "expression(((a*c) +'*x^' + (c-1)) + '/(' + b^2 + '+x^' + (2*c) + ')')", "templateType": "anything", "name": "Choice3", "group": "Ungrouped variables", "description": ""}, "Choice1": {"definition": "expression(((a*c) +'*x^' + (c-1)) + '/(' + b + '+x^' + c + ')^2')", "templateType": "anything", "name": "Choice1", "group": "Ungrouped variables", "description": ""}, "c": {"definition": "random(2..4 except b)", "templateType": "anything", "name": "c", "group": "Ungrouped variables", "description": ""}, "a": {"definition": "random(2..9)", "templateType": "anything", "name": "a", "group": "Ungrouped variables", "description": ""}, "marks": {"definition": "//marks to award for each choice, then append the marks for \"none of the above\"\n    map(choicemarks[j],j,order)+noneofthesemarks", "templateType": "anything", "name": "marks", "group": "Ungrouped variables", "description": ""}, "Choice2": {"definition": "expression(((-a) +'*x^' + (c-1)) + '/(' + b + '+x^' + c + ')^2')", "templateType": "anything", "name": "Choice2", "group": "Ungrouped variables", "description": ""}, "order": {"definition": "//the order in which to display the choices - pick a random permutation of [0,1,2,3,4]\n    deal(4)", "templateType": "anything", "name": "order", "group": "Ungrouped variables", "description": ""}, "shuffledchoices": {"definition": "//the choice texts, in the shuffled order\n    map(choices[j],j,order)", "templateType": "anything", "name": "shuffledchoices", "group": "Ungrouped variables", "description": ""}, "noneofthesemarks": {"definition": "//marks to award for selecting \"none of these\"\n    0", "templateType": "anything", "name": "noneofthesemarks", "group": "Ungrouped variables", "description": ""}, "b": {"definition": "random(1..5 except a)", "templateType": "anything", "name": "b", "group": "Ungrouped variables", "description": ""}, "choicemarks": {"definition": "//marks to award for each of the above choices\n    [1,0,0,0]", "templateType": "anything", "name": "choicemarks", "group": "Ungrouped variables", "description": ""}, "choices": {"definition": "//choices, apart from \"none of the above\"\n    [correctAnswer,Choice1,Choice2,Choice3]", "templateType": "anything", "name": "choices", "group": "Ungrouped variables", "description": ""}, "correctAnswer": {"definition": "expression(((-a*c) +'*x^' + (c-1)) + '/(' + b + '+x^' + c + ')^2')", "templateType": "anything", "name": "correctAnswer", "group": "Ungrouped variables", "description": ""}}, "functions": {}, "variablesTest": {"condition": "", "maxRuns": 100}, "extensions": [], "parts": [{"matrix": "marks", "minMarks": 0, "showCorrectAnswer": true, "scripts": {}, "variableReplacements": [], "displayColumns": 0, "showFeedbackIcon": true, "variableReplacementStrategy": "originalfirst", "maxMarks": 0, "shuffleChoices": false, "displayType": "radiogroup", "type": "1_n_2", "marks": 0, "choices": ["<p>$\\simplify[!constantsFirst,unitPower]{{shuffledchoices[0]}}$</p>", "<p>$\\simplify[!constantsFirst,unitPower]{{shuffledchoices[1]}}$</p>", "<p>$\\simplify[!constantsFirst,unitPower]{{shuffledchoices[2]}}$</p>", "<p>$\\simplify[!constantsFirst,unitPower]{{shuffledchoices[3]}}$</p>", "<p>None of these</p>"]}], "statement": "<p>If $\\simplify[!constantsFirst]{y = {a}/({b}+x^{c})}$, then $\\simplify{d*y/(d*x)} =$ is</p>", "tags": [], "advice": "", "ungrouped_variables": ["a", "b", "c", "correctAnswer", "Choice1", "Choice2", "Choice3", "choices", "noneofthesemarks", "choicemarks", "marks", "shuffledchoices", "order"], "rulesets": {}, "variable_groups": [], "name": "Q22", "metadata": {"licence": "Creative Commons Attribution 4.0 International", "description": ""}, "preamble": {"js": "", "css": ""}, "type": "question", "contributors": [{"name": "David Wishart", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/1461/"}]}]}], "contributors": [{"name": "David Wishart", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/1461/"}]}