// Numbas version: finer_feedback_settings
{"name": "Graph Matching", "extensions": [], "custom_part_types": [], "resources": [["question-resources/y3x2.png", "/srv/numbas/media/question-resources/y3x2.png"], ["question-resources/y-3x2.png", "/srv/numbas/media/question-resources/y-3x2.png"], ["question-resources/y3x-2.png", "/srv/numbas/media/question-resources/y3x-2.png"], ["question-resources/y-3x-2.png", "/srv/numbas/media/question-resources/y-3x-2.png"], ["question-resources/ymxc_sliders.ggb", "/srv/numbas/media/question-resources/ymxc_sliders.ggb"]], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"functions": {}, "ungrouped_variables": ["choice4", "choice1", "choice2", "choices", "graphs", "answer", "choice3", "Equations", "chosengraph"], "name": "Graph Matching", "tags": ["equation", "function", "graph", "linear", "straight line"], "preamble": {"css": "", "js": ""}, "advice": "<p>Remember that when the equation of a straight line is written in the form $y=mx+c$, $m$ represents the gradient (or slope) of the graph and $c$ is the $y$-intercept, the value of $y$ when the graph crosses the $y$ axis.</p>\n<p>A positive gradient tells us that the values of $y$ are increasing as $x$ increases so the graph slopes upwards going from left to right. If the gradient is negative, $y$ decreases as you go from left to right.</p>\n<p>See&nbsp;<a href=\"http://www.mathcentre.ac.uk/resources/Engineering%20maths%20first%20aid%20kit/latexsource%20and%20diagrams/3_3.pdf\">http://www.mathcentre.ac.uk/resources/Engineering%20maths%20first%20aid%20kit/latexsource%20and%20diagrams/3_3.pdf</a> for more about straight line graphs.</p>\n<p></p>", "rulesets": {}, "parts": [{"displayColumns": 0, "matrix": ["1", 0, 0, 0], "shuffleChoices": true, "variableReplacements": [], "choices": ["<p>{choice1}</p>", "<p>{choice2}</p>", "<p>{choice3}</p>", "<p>{choice4}</p>"], "variableReplacementStrategy": "originalfirst", "maxMarks": 0, "distractors": ["", "", "", ""], "showCorrectAnswer": true, "scripts": {}, "marks": 0, "type": "1_n_2", "displayType": "radiogroup", "minMarks": 0}], "extensions": [], "statement": "<p>Choose the correct equation for this straight line graph.</p>\n<p>{image(chosengraph)}</p>", "variable_groups": [], "variablesTest": {"maxRuns": 100, "condition": ""}, "variables": {"choice4": {"definition": "random(Equations except choice1 except choice2 except choice3)", "templateType": "anything", "group": "Ungrouped variables", "name": "choice4", "description": ""}, "choice1": {"definition": "choices", "templateType": "anything", "group": "Ungrouped variables", "name": "choice1", "description": ""}, "choice2": {"definition": "random(Equations except choice1)", "templateType": "anything", "group": "Ungrouped variables", "name": "choice2", "description": ""}, "choices": {"definition": "switch({answer}=1, '$y=3x+2$', {answer}=2,'$y=-3x+2$',{answer}=3,'$y=3x-2$', {answer=4, '$y=-3x-2$')", "templateType": "anything", "group": "Ungrouped variables", "name": "choices", "description": ""}, "graphs": {"definition": "['resources/question-resources/y3x2.png','resources/question-resources/y-3x2.png','resources/question-resources/y3x-2.png',\n'resources/question-resources/y-3x-2.png']", "templateType": "anything", "group": "Ungrouped variables", "name": "graphs", "description": ""}, "answer": {"definition": "switch (chosengraph ='resources/question-resources/y3x2.png',1, chosengraph ='resources/question-resources/y-3x2.png',2, chosengraph = 'resources/question-resources/y3x-2.png',3, chosengraph = 'resources/question-resources/y-3x-2.png',4 )", "templateType": "anything", "group": "Ungrouped variables", "name": "answer", "description": ""}, "choice3": {"definition": "random(Equations except choice1 except choice2)", "templateType": "anything", "group": "Ungrouped variables", "name": "choice3", "description": ""}, "Equations": {"definition": "['$y=3x+2$', '$y=3x-2$', '$y=-3x-2$', '$ y = - 3x+2$']", "templateType": "anything", "group": "Ungrouped variables", "name": "Equations", "description": ""}, "chosengraph": {"definition": "Random(graphs)", "templateType": "anything", "group": "Ungrouped variables", "name": "chosengraph", "description": ""}}, "metadata": {"description": "<p>Matching a straight line graph to its equation.</p>", "licence": "Creative Commons Attribution 4.0 International"}, "type": "question", "showQuestionGroupNames": false, "question_groups": [{"name": "", "pickingStrategy": "all-ordered", "pickQuestions": 0, "questions": []}], "contributors": [{"name": "Lois Rollings", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/326/"}]}]}], "contributors": [{"name": "Lois Rollings", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/326/"}]}