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Constant term

"}, "a": {"name": "a", "group": "Ungrouped variables", "definition": "random(-10..10 except 0)", "templateType": "anything", "description": "

Coefficient of \$x^2\$

"}, "discriminant": {"name": "discriminant", "group": "Ungrouped variables", "definition": "b^2-4*a*c", "templateType": "anything", "description": ""}, "b": {"name": "b", "group": "Ungrouped variables", "definition": "random(-10..10)", "templateType": "anything", "description": "

Coefficient of \$x\$

"}, "root_1": {"name": "root_1", "group": "Ungrouped variables", "definition": "(-b+sqrt(discriminant))/(2*a)", "templateType": "anything", "description": ""}}, "variable_groups": [], "name": "Only mark a gap depending on the answer to a previous gap.", "metadata": {"licence": "Creative Commons Attribution 4.0 International", "description": "

Student is asked whether a quadratic equation can be factorised. If they say \"yes\", they're asked to give the factorisation.

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Consider \\[ \\simplify[basic]{{a}x^2 + {b}x + {c}} = 0 \\]

\n

What is the discriminant of this equation? [[0]]

\n

Does this equation have a factorisation? [[1]]

\n
\n

What is it?

\n

[[2]] \$ = 0\$

\n
", "showFeedbackIcon": true, "customMarkingAlgorithm": "", "unitTests": [], "customName": "", "variableReplacements": [], "gaps": [{"unitTests": [], "extendBaseMarkingAlgorithm": true, "scripts": {}, "variableReplacementStrategy": "originalfirst", "mustBeReducedPC": 0, "useCustomName": false, "showCorrectAnswer": true, "type": "numberentry", "mustBeReduced": false, "maxValue": "discriminant", "showFractionHint": true, "correctAnswerStyle": "plain", "customMarkingAlgorithm": "", "marks": 1, "notationStyles": ["plain", "en", "si-en"], "minValue": "discriminant", "customName": "", "variableReplacements": [], "correctAnswerFraction": false, "allowFractions": false, "showFeedbackIcon": true}, {"unitTests": [], "customName": "", "extendBaseMarkingAlgorithm": true, "scripts": {"mark": {"script": "// store whether the student said \"yes\" in an attribute that's easier to access\nthis.yes = this.ticks[0][0];", "order": "after"}}, "variableReplacementStrategy": "originalfirst", "showCellAnswerState": true, "useCustomName": false, "type": "1_n_2", "showCorrectAnswer": true, "minMarks": 0, "matrix": "if(discriminant<0,[0,1],[1,0])", "choices": ["

Yes

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No

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