// Numbas version: finer_feedback_settings
{"name": "NC Math 3 Identifying parts of the Exponential Function Hidden Rate", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"functions": {}, "variable_groups": [], "variablesTest": {"maxRuns": 100, "condition": ""}, "name": "NC Math 3 Identifying parts of the Exponential Function Hidden Rate", "metadata": {"description": "", "licence": "All rights reserved"}, "ungrouped_variables": ["A", "r", "one", "operator", "sign", "rabs", "GorD", "gdChoice", "rPercent", "gdFactor"], "advice": "", "extensions": [], "rulesets": {}, "variables": {"GorD": {"templateType": "anything", "name": "GorD", "definition": "[\"Growth\",\"Decay\"]", "description": "", "group": "Ungrouped variables"}, "r": {"templateType": "anything", "name": "r", "definition": "random(-0.9..0.9#0.015 except 0)", "description": "", "group": "Ungrouped variables"}, "sign": {"templateType": "anything", "name": "sign", "definition": "award(1,r>0)", "description": "", "group": "Ungrouped variables"}, "rPercent": {"templateType": "anything", "name": "rPercent", "definition": "abs(r)*100", "description": "", "group": "Ungrouped variables"}, "operator": {"templateType": "anything", "name": "operator", "definition": "[\"$-$\",\"$+$\"]", "description": "", "group": "Ungrouped variables"}, "gdChoice": {"templateType": "anything", "name": "gdChoice", "definition": "award(1,r<0)", "description": "", "group": "Ungrouped variables"}, "one": {"templateType": "anything", "name": "one", "definition": "1", "description": "", "group": "Ungrouped variables"}, "gdFactor": {"templateType": "anything", "name": "gdFactor", "definition": "1+r", "description": "", "group": "Ungrouped variables"}, "rabs": {"templateType": "anything", "name": "rabs", "definition": "abs(r)", "description": "", "group": "Ungrouped variables"}, "A": {"templateType": "anything", "name": "A", "definition": "random(1..25#0.1)", "description": "", "group": "Ungrouped variables"}}, "parts": [{"scripts": {}, "useCustomName": false, "showFeedbackIcon": true, "showCorrectAnswer": true, "sortAnswers": false, "unitTests": [], "extendBaseMarkingAlgorithm": true, "prompt": "<p>Growth or Decay? [[0]]</p>", "type": "gapfill", "adaptiveMarkingPenalty": 0, "customName": "", "variableReplacementStrategy": "originalfirst", "customMarkingAlgorithm": "", "variableReplacements": [], "gaps": [{"scripts": {}, "useCustomName": false, "showFeedbackIcon": true, "showCorrectAnswer": true, "unitTests": [], "extendBaseMarkingAlgorithm": true, "answer": "{GorD[{gdChoice}]}", "type": "patternmatch", "adaptiveMarkingPenalty": 0, "customName": "", "matchMode": "regex", "variableReplacementStrategy": "originalfirst", "customMarkingAlgorithm": "", "variableReplacements": [], "displayAnswer": "{GorD[{gdChoice}]}", "marks": 1}], "marks": 0}, {"useCustomName": false, "correctAnswerStyle": "plain", "showFeedbackIcon": true, "mustBeReduced": false, "showFractionHint": true, "prompt": "<p>Initial Value?</p>", "adaptiveMarkingPenalty": 0, "customName": "", "variableReplacementStrategy": "originalfirst", "variableReplacements": [], "type": "numberentry", "scripts": {}, "unitTests": [], "notationStyles": ["plain", "en", "si-en"], "showCorrectAnswer": true, "extendBaseMarkingAlgorithm": true, "mustBeReducedPC": 0, "marks": 1, "maxValue": "{A}", "allowFractions": false, "customMarkingAlgorithm": "", "minValue": "{A}", "correctAnswerFraction": false}, {"scripts": {}, "useCustomName": false, "showFeedbackIcon": true, "showCorrectAnswer": true, "unitTests": [], "extendBaseMarkingAlgorithm": true, "answer": "{rPercent}%", "prompt": "<p>Rate of Growth or Decay as a percent?</p>", "marks": 1, "adaptiveMarkingPenalty": 0, "customName": "", "matchMode": "exact", "variableReplacementStrategy": "originalfirst", "customMarkingAlgorithm": "", "variableReplacements": [], "displayAnswer": "{rPercent}%", "type": "patternmatch"}, {"useCustomName": false, "correctAnswerStyle": "plain", "showFeedbackIcon": true, "mustBeReduced": false, "showFractionHint": true, "prompt": "<p>Growth or Decay factor?</p>", "adaptiveMarkingPenalty": 0, "customName": "", "variableReplacementStrategy": "originalfirst", "variableReplacements": [], "type": "numberentry", "scripts": {}, "unitTests": [], "notationStyles": ["plain", "en", "si-en"], "showCorrectAnswer": true, "extendBaseMarkingAlgorithm": true, "mustBeReducedPC": 0, "marks": 1, "maxValue": "gdFactor", "allowFractions": false, "customMarkingAlgorithm": "", "minValue": "gdFactor", "correctAnswerFraction": false}], "preamble": {"js": "", "css": ""}, "statement": "<p>Determine if each exponential function is growth/decay, state initial amount, growth or decay rate as a&nbsp;<em><strong>percent (%)</strong></em>, and the growth or decay factor.</p>\n<p>$f(t) = \\var{A}( \\simplify{1 + {r}} )^t$</p>", "tags": [], "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/"}]}