// Numbas version: exam_results_page_options
{"name": "Numbas Input: Algebra, Powers and products", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"variables": {"b": {"templateType": "anything", "name": "b", "description": "", "definition": "random(2..4)", "group": "Ungrouped variables"}, "c": {"templateType": "anything", "name": "c", "description": "", "definition": "s*random(1..9)", "group": "Ungrouped variables"}, "a": {"templateType": "anything", "name": "a", "description": "", "definition": "random(2..9)", "group": "Ungrouped variables"}, "s": {"templateType": "anything", "name": "s", "description": "", "definition": "random(1,-1)", "group": "Ungrouped variables"}, "d": {"templateType": "anything", "name": "d", "description": "", "definition": "random(1..9)", "group": "Ungrouped variables"}}, "statement": "<p>This example shows you how to input algebraic expressions.</p>\n<p>You will see that your answer will appear in mathematical notation next to the input box. Remember to check that your answer has been interpreted as you intended.</p>", "name": "Numbas Input: Algebra, Powers and products", "parts": [{"marks": 0, "customMarkingAlgorithm": "", "scripts": {}, "extendBaseMarkingAlgorithm": true, "customName": "", "sortAnswers": false, "variableReplacementStrategy": "originalfirst", "showCorrectAnswer": true, "showFeedbackIcon": true, "type": "gapfill", "prompt": "<p>To input an expression such as $3x^2+5x-2$,&nbsp; just type <code>3*x^2+5*x-2</code>.</p>\n<p>Notice that you need to use the asterisk (*) to indicate multiplication.</p>\n<p>Input this polynomial: $\\simplify[all]{{a}*x^{b}+{c}*x+{d}}=\\;$[[0]]</p>", "gaps": [{"vsetRangePoints": 5, "customMarkingAlgorithm": "", "showPreview": true, "extendBaseMarkingAlgorithm": true, "customName": "", "variableReplacementStrategy": "originalfirst", "checkingType": "absdiff", "checkingAccuracy": 0.001, "valuegenerators": [{"name": "x", "value": ""}], "showFeedbackIcon": true, "marks": 1, "checkVariableNames": false, "answerSimplification": "all", "vsetRange": [0, 1], "failureRate": 1, "answer": "{a}*x^{b}+{c}x+{d}", "showCorrectAnswer": true, "scripts": {}, "type": "jme", "unitTests": [], "useCustomName": false, "variableReplacements": []}], "unitTests": [], "useCustomName": false, "variableReplacements": []}, {"marks": 0, "customMarkingAlgorithm": "", "scripts": {}, "extendBaseMarkingAlgorithm": true, "customName": "", "sortAnswers": false, "variableReplacementStrategy": "originalfirst", "showCorrectAnswer": true, "showFeedbackIcon": true, "type": "gapfill", "prompt": "<p>Expand these brackets and input the resulting expression:</p>\n<p>$\\simplify[all]{(x+{a}y)(x+{c}y)}=\\;$[[0]]</p>\n<p>Note that you must enter $x$ * $y$ to show the expression $xy$.&nbsp; The input $xy$ is not interpreted as a product.</p>\n<p></p>", "gaps": [{"vsetRangePoints": 5, "customMarkingAlgorithm": "", "showPreview": true, "extendBaseMarkingAlgorithm": true, "customName": "", "variableReplacementStrategy": "originalfirst", "checkingType": "absdiff", "notallowed": {"showStrings": false, "message": "<p>Do not include brackets in your answer.</p>", "strings": ["("], "partialCredit": 0}, "checkingAccuracy": 0.001, "valuegenerators": [{"name": "x", "value": ""}, {"name": "y", "value": ""}], "showFeedbackIcon": true, "marks": 1, "checkVariableNames": true, "answerSimplification": "all", "vsetRange": [0, 1], "failureRate": 1, "answer": "x^2+{a+c}x*y+{a*c}y^2", "showCorrectAnswer": true, "scripts": {}, "type": "jme", "unitTests": [], "useCustomName": false, "variableReplacements": []}], "unitTests": [], "useCustomName": false, "variableReplacements": []}], "functions": {}, "rulesets": {}, "variable_groups": [], "preamble": {"css": "", "js": ""}, "tags": [], "variablesTest": {"maxRuns": 100, "condition": ""}, "extensions": [], "ungrouped_variables": ["a", "s", "b", "c", "d"], "advice": "", "metadata": {"licence": "Creative Commons Attribution 4.0 International", "description": "<p>How to input x^2 and x*y.</p>"}, "contributors": [{"name": "Lois Rollings", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/326/"}, {"name": "Xiaodan Leng", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/2146/"}]}]}], "contributors": [{"name": "Lois Rollings", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/326/"}, {"name": "Xiaodan Leng", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/2146/"}]}