// Numbas version: exam_results_page_options
{"name": "Francis 's copy of 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": [{"functions": {}, "ungrouped_variables": ["a", "s", "b", "c", "d"], "name": "Francis 's copy of Numbas Input: Algebra, Powers and products", "tags": ["algebraic expressions", "input", "introduction", "notation", "Numbas", "numbas", "polynomials", "symbols"], "advice": "", "rulesets": {}, "parts": [{"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>", "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "gaps": [{"vsetrangepoints": 5, "expectedvariablenames": [], "checkingaccuracy": 0.001, "type": "jme", "showpreview": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "showCorrectAnswer": true, "answersimplification": "all", "scripts": {}, "answer": "{a}*x^{b}+{c}x+{d}", "marks": 1, "checkvariablenames": false, "checkingtype": "absdiff", "vsetrange": [0, 1]}], "showCorrectAnswer": true, "scripts": {}, "marks": 0, "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>", "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "gaps": [{"notallowed": {"message": "<p>Do not include brackets in your answer.</p>", "showStrings": false, "strings": ["("], "partialCredit": 0}, "variableReplacements": [], "expectedvariablenames": ["x", "y"], "checkingaccuracy": 0.001, "type": "jme", "showpreview": true, "vsetrangepoints": 5, "variableReplacementStrategy": "originalfirst", "showCorrectAnswer": true, "answersimplification": "all", "scripts": {}, "answer": "x^2+{a+c}x*y+{a*c}y^2", "marks": 1, "checkvariablenames": true, "checkingtype": "absdiff", "vsetrange": [0, 1]}], "showCorrectAnswer": true, "scripts": {}, "marks": 0, "type": "gapfill"}], "extensions": [], "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>", "variable_groups": [], "variablesTest": {"maxRuns": 100, "condition": ""}, "preamble": {"css": "", "js": ""}, "variables": {"a": {"definition": "random(2..9)", "templateType": "anything", "group": "Ungrouped variables", "name": "a", "description": ""}, "s": {"definition": "random(1,-1)", "templateType": "anything", "group": "Ungrouped variables", "name": "s", "description": ""}, "b": {"definition": "random(2..4)", "templateType": "anything", "group": "Ungrouped variables", "name": "b", "description": ""}, "c": {"definition": "s*random(1..9)", "templateType": "anything", "group": "Ungrouped variables", "name": "c", "description": ""}, "d": {"definition": "random(1..9)", "templateType": "anything", "group": "Ungrouped variables", "name": "d", "description": ""}}, "metadata": {"description": "<p>How to input x^2 and x*y.</p>", "licence": "Creative Commons Attribution 4.0 International"}, "type": "question", "showQuestionGroupNames": false, "question_groups": [{"name": "", "pickingStrategy": "all-ordered", "pickQuestions": 0, "questions": []}], "contributors": [{"name": "Francis Duah", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/339/"}]}]}], "contributors": [{"name": "Francis Duah", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/339/"}]}