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CAT Quadratic Equations — practice questions

Explore 27 free Quadratic Equations questions in CAT Quantitative Aptitude. Open each question or exercise to read its content, reference answers and available explanation.

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Quadratic Equations questions and exercises with answers

Showing questions 1–27 of 27.

An equation p(x) = 0 where p is a polynomial of degree 2 is called a:Read the answer and worked solution →The scholar credited with deriving the quadratic formula around 1025 CE was:Read the answer and worked solution →The expression b squared minus 4ac is called the equation's:Read the answer and worked solution →If that expression is greater than zero, the equation has:Read the answer and worked solution →If that expression equals zero, the equation has:Read the answer and worked solution →If that expression is less than zero, the equation has:Read the answer and worked solution →For the equation 2x squared minus 5x plus 3 equals 0, the discriminant is:Read the answer and worked solution →Because that discriminant is positive, the equation 2x squared minus 5x plus 3 equals 0 has:Read the answer and worked solution →The roots of 2x squared minus 5x plus 3 equals 0 are:Read the answer and worked solution →For the equation 6x squared minus x minus 2 equals 0, the discriminant is:Read the answer and worked solution →The roots of 6x squared minus x minus 2 equals 0 are:Read the answer and worked solution →For the equation x squared plus 4x minus 5 equals 0, the discriminant is:Read the answer and worked solution →The roots of x squared plus 4x minus 5 equals 0 are:Read the answer and worked solution →A method that rewrites the equation so one side becomes a perfect square is called:Read the answer and worked solution →The values of x that satisfy a quadratic equation are called its:Read the answer and worked solution →The roots of a quadratic equation are the same as the zeroes of the corresponding:Read the answer and worked solution →A number of toys problem leads to 2x squared plus x minus 300 equals 0. Its discriminant is:Read the answer and worked solution →Because 2401 is the square of 49, that equation has roots that are:Read the answer and worked solution →Before applying any solving method, an equation must first be written in its:Read the answer and worked solution →Catch the quadraticsRead the answer and worked solution →Pop the root outcomesRead the answer and worked solution →Run the quadratic gatesRead the answer and worked solution →Slice the quadratic wordsRead the answer and worked solution →Real roots or noneRead the answer and worked solution →Sort the equationsRead the answer and worked solution →Type the numberRead the answer and worked solution →Quadratics bingoRead the answer and worked solution →

Worked practice questions

An equation p(x) = 0 where p is a polynomial of degree 2 is called a:

  1. Quadratic equation
  2. Quadrant equation
  3. Quantity equation
  4. Quotient equation
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Correct answer: A. Quadratic equation

1. The highest power of the variable is two. 2. Writing terms in descending order gives its standard form. 3. It is a quadratic equation. _Source: syllabus Mathematics, Chapter 4, Quadratic Equations._

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The scholar credited with deriving the quadratic formula around 1025 CE was:

  1. Sridharaswamy
  2. Sridharacharya
  3. Sridharananda
  4. Sridharamurti
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Correct answer: B. Sridharacharya

1. The date given is the eleventh century. 2. The formula still carries the name. 3. He was Sridharacharya. _Source: syllabus Mathematics, Chapter 4, Quadratic Equations._

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The expression b squared minus 4ac is called the equation's:

  1. Denominator
  2. Dividend
  3. Discriminant
  4. Determinant
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Correct answer: C. Discriminant

1. Its sign decides the nature of the roots. 2. It sits inside the square root of the formula. 3. It is the discriminant. _Source: syllabus Mathematics, Chapter 4, Quadratic Equations._

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More Quantitative Aptitude topics

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