Which of the following situations is generally represented by a quadratic equation?
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Answer and explanation
Correct answer: Area of a rectangle when both its length and breadth are linear expressions in the same variable
If the sides are \((x+2)\) and \((x-1)\), then the area is \((x+2)(x-1)=x^2+x-2\), which gives a quadratic equation. Distance at constant speed is linear. Exam tip: look for a product of variable expressions.
Frequently asked questions
What is the correct answer to this question?
Area of a rectangle when both its length and breadth are linear expressions in the same variable
Why is this the correct answer?
If the sides are \((x+2)\) and \((x-1)\), then the area is \((x+2)(x-1)=x^2+x-2\), which gives a quadratic equation. Distance at constant speed is linear. Exam tip: look for a product of variable expressions.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Quadratic Equations. Topic: Word Problems and Applications.
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