// Numbas version: finer_feedback_settings
{"name": "Graph a line", "extensions": ["geogebra"], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"name": "Graph a line", "tags": [], "metadata": {"description": "<p>Students are given a line equation in the form y=mx+b and asked to graph it.</p>\n<p>m and b are randomised.</p>\n<p>The question is not auto-marked, students need to \"reveal answers\" to see a sample graph that they can compare to their own.</p>", "licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International"}, "statement": "<p>Construct a table of values and use it to draw a graph of the equation&nbsp;$y = \\var{dispm}x&nbsp; \\var{dispb}$.</p>", "advice": "<p>Your graph should look similar to this {geogebra_applet('https://www.geogebra.org/m/wxv4ykqj',defs)}</p>\n<p>Your graph needs:</p>\n<ul>\n<li>to&nbsp;include (0,0).</li>\n<li>to show the line.</li>\n<li>labels and arrows on both axes.</li>\n<li>a scale on each axis.</li>\n</ul>\n<p>You may have chosen different scales for your axes. This is fine.</p>", "rulesets": {}, "extensions": ["geogebra"], "variables": {"m": {"name": "m", "group": "Ungrouped variables", "definition": "random(-2,-1,-0.5,0.5,1,2)", "description": "<p>gradient</p>", "templateType": "anything"}, "b": {"name": "b", "group": "Ungrouped variables", "definition": "random(-5..5)", "description": "<p>y-intercept</p>", "templateType": "anything"}, "defs": {"name": "defs", "group": "Ungrouped variables", "definition": "[\n  ['a',m],['b',b],['xmin',-5],['xmax',5],['ymin',ymin],['ymax',ymax]\n  ]", "description": "<p>geogebra variables</p>", "templateType": "anything"}, "ymin": {"name": "ymin", "group": "Ungrouped variables", "definition": "b - max(m*(-5),m*5) - 2", "description": "<p>minimum y-axis value</p>", "templateType": "anything"}, "ymax": {"name": "ymax", "group": "Ungrouped variables", "definition": "b + max(m*(-5),m*5) + 2", "description": "<p>maximum y-axis value</p>", "templateType": "anything"}, "dispb": {"name": "dispb", "group": "Ungrouped variables", "definition": "if(b=0,'',if (b>0,'$+\\\\var{b}$','$\\\\var{b}$'))", "description": "", "templateType": "anything"}, "dispm": {"name": "dispm", "group": "Ungrouped variables", "definition": "if(m=1,\"\",if(m=-1,\"$-$\",\"$\\\\var{m}$\"))", "description": "", "templateType": "anything"}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["m", "b", "defs", "ymin", "ymax", "dispb", "dispm"], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "information", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Once you have drawn your graph, click on \"Reveal answers\" to check your work.</p>"}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always", "type": "question", "contributors": [{"name": "Merryn Horrocks", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/4052/"}]}]}], "contributors": [{"name": "Merryn Horrocks", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/4052/"}]}