// Numbas version: exam_results_page_options {"name": "Find the zeros of the given quadratic function.", "extensions": ["geogebra"], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"preamble": {"js": "", "css": ""}, "functions": {}, "advice": "

Look for the points where the function crosses the x-axis.

", "variablesTest": {"condition": "", "maxRuns": 100}, "extensions": ["geogebra"], "rulesets": {}, "ungrouped_variables": ["a", "x1", "x2", "defs"], "metadata": {"licence": "None specified", "description": "

Students will analyze a graph of a quadratic function to identify the x-intercepts (or Roots, or Zeros).

"}, "name": "Find the zeros of the given quadratic function.", "parts": [{"showPreview": true, "vsetRangePoints": 5, "failureRate": 1, "unitTests": [], "checkVariableNames": false, "extendBaseMarkingAlgorithm": true, "variableReplacements": [], "type": "jme", "prompt": "

", "variableReplacementStrategy": "originalfirst", "vsetRange": [0, 1], "checkingType": "absdiff", "checkingAccuracy": 0.001, "showFeedbackIcon": true, "showCorrectAnswer": true, "customMarkingAlgorithm": "", "scripts": {}, "answer": "set({x1},{x2})", "expectedVariableNames": [], "marks": 1}], "tags": [], "variable_groups": [], "variables": {"defs": {"definition": "[\n ['a',a],\n ['x1',x1],\n ['x2',x2]\n]", "group": "Ungrouped variables", "templateType": "anything", "name": "defs", "description": "

used to send the parameters to the geogebra applet

"}, "x1": {"definition": "random(-10..10)", "group": "Ungrouped variables", "templateType": "anything", "name": "x1", "description": "

x1 is the first root of the function

"}, "a": {"definition": "random(-1..1#0.1)", "group": "Ungrouped variables", "templateType": "anything", "name": "a", "description": "

"}, "x2": {"definition": "random(-10..10)", "group": "Ungrouped variables", "templateType": "anything", "name": "x2", "description": "

x2 is the second root of the function

"}}, "statement": "

What are the zeros of the quadratic function graphed below?

\n

{geogebra_applet('https://www.geogebra.org/m/mgj5whns', defs)}

\n

", "type": "question", "contributors": [{"name": "Terry Young", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/3130/"}]}]}], "contributors": [{"name": "Terry Young", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/3130/"}]}