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  • Quadratic Equations, Inequalities, and Functions
  • Quadratic function and discriminant
  • Discriminant of a quadratic equation

Discriminant of a quadratic equation

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  • Question 1:
    1 pts
    		Discriminant of the quadratic polynomial is
  • Question 2:
    1 pts
    		The discriminant of quadratic equation is:

  • Question 3:
    1 pts
    		The discriminant of quadratic equation is:

  • Question 4:
    1 pts
    		The discriminant of quadratic equation is:

  • Question 5:
    1 pts
    		If the discriminant of an equation is , which of the following is true
    Equation has two complex solutions
    Equation has one real solution
    Equation has two real solutions
  • Question 6:
    2 pts
    		Let be a discriminant of the quadratic equation which graph is shown at the right. Which of the following statements is true?
  • Question 7:
    2 pts
    		If the discriminant is a perfect square the roots are rational.
  • Question 8:
    2 pts
    		How many and what type of solutions would an equation have if the discriminant is 1234?
    two complex solutions
    one real solution
    two real solutions
  • Question 9:
    2 pts
    		State the nature of the roots of the following quadratic equations
    two complex solutions
    one real solution
    two real solutions
  • Question 10:
    3 pts
    		Let be a discriminant of the quadratic function , which graph is shown at the right. Which of the following statements is true?
    a>0 , D>0
    a<0 , D<0
    a>0 , D<0
    a<0 , D>0
  • Question 11:
    3 pts
    		Let be a discriminant of the quadratic function , which graph is shown at the right. Which of the following statements is true?
  • Question 12:
    3 pts
    		If the value of a discriminant is a perfect square, then the quadratic polynomial can be factored.
  • Question 13:
    3 pts
    		If the value of a discriminant is zero, then the quadratic polynomial is a perfect square.
  • Question 14:
    3 pts
    		Determine so that has two equal real solutions.

  • Question 15:
    3 pts
    		Determine so that has two equal real solutions.

Solving quadratic equations

Graphing function and discriminant