// Numbas version: exam_results_page_options
{"name": "Equation of a straight line", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"functions": {}, "ungrouped_variables": ["a", "b", "c", "d"], "name": "Equation of a straight line", "tags": [], "preamble": {"css": "", "js": ""}, "advice": "<p>Remember that any form of y = mx + c can be a straight line. Any of these values can also equate to 0!</p>", "rulesets": {}, "parts": [{"maxAnswers": 0, "displayColumns": "1", "prompt": "<p>Select all that apply.</p>", "matrix": ["1", "1", "1", "1", "1", 0, 0, 0, 0, 0], "shuffleChoices": true, "variableReplacements": [], "minAnswers": 0, "variableReplacementStrategy": "originalfirst", "maxMarks": 0, "distractors": ["", "", "", "", "", "", "", "", "", ""], "showCorrectAnswer": true, "scripts": {}, "warningType": "none", "marks": 0, "choices": ["<p>$y = mx + c$</p>", "<p>$y = x$</p>", "<p>$y - x = c$</p>", "<p>$y =$ {a}</p>", "<p>$x =$ {b}</p>", "<p>$y = mx^2 + c$</p>", "<p>$y = x^2$</p>", "<p>$y^3 = mx^3 + c$</p>", "<p>$y^2 + x^2&nbsp;= 1$</p>", "<p>$y = \\var{c}x^2 + \\var{d}$</p>"], "type": "m_n_2", "displayType": "checkbox", "minMarks": 0}], "extensions": [], "statement": "<p>Which of the following are&nbsp;straight-line graphs?</p>", "variable_groups": [], "variablesTest": {"maxRuns": 100, "condition": ""}, "variables": {"a": {"definition": "random(-10..10)", "templateType": "anything", "group": "Ungrouped variables", "name": "a", "description": ""}, "c": {"definition": "random(-20..20)", "templateType": "anything", "group": "Ungrouped variables", "name": "c", "description": ""}, "b": {"definition": "random(-20..20)", "templateType": "anything", "group": "Ungrouped variables", "name": "b", "description": ""}, "d": {"definition": "random(-10..10)", "templateType": "anything", "group": "Ungrouped variables", "name": "d", "description": ""}}, "metadata": {"description": "<p>Idenitifying straight-line graph equations</p>", "licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International"}, "type": "question", "contributors": [{"name": "Rachel Staddon", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/901/"}]}]}], "contributors": [{"name": "Rachel Staddon", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/901/"}]}