Roots of a Quadratic Equation

• The roots are real number and equal.

• The roots are rational numbers and are not equal.
  

• The roots are irrational numbers and are not equal.

• Has no real roots.

What is the significance of discriminant of a quadratic equation?

• To solve a quadratic equation.
  

• To describe the values a, b and c of a quadratic equation.
  

• To describe the nature of the roots of a quadratic equation.

• none of the above

• The roots are real number and equal.

• The roots are rational numbers and are not equal.
  

• The roots are irrational numbers and are not equal.

• Has no real roots.

• The roots are real number and equal.

• The roots are rational numbers and are not equal.
  

• The roots are irrational numbers and are not equal.

• Has no real roots.

• The roots are rational numbers and are not equal.

• The roots are irrational numbers and are not equal.
  

• The roots are real numbers and are equal.
  

• Has no real roots.
  

• The roots are rational numbers and are not equal.

• The roots are irrational numbers and are not equal.
  

• The roots are real numbers and are equal.
  

• Has no real roots.
  

• The roots are rational numbers and are not equal.

• The roots are irrational numbers and are not equal.
  

• The roots are real numbers and are equal.
  

• Has no real roots.
  

if the nature of the roots of a quadratic equation are real, rational, and equal, then the discriminant is _____.

• greater than 0 and is a perfect square

• greater than 0 but not a perfect square

• equal to 0

• less than 0

If the roots of a quadratic equation are irrational, then the discriminant is ____.

• greater thean 0, and is a perfect square

• greater than 0, but not a perfect square

• equal to zero

• less than 0

• real, rational, equal

• real, irrational, unequal

• real, rational, unequal

• no real roots