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Q 1/9
Score 0
What is a discriminant?
30
The discriminant helps tell you the vertex of a quadratic equation.
The discriminant helps tell you the nature of roots of a quadratic equation.
discriminant helps tell you the solution of a quadratic equation
The discriminant helps tell you the trend of the graph of a quadratic equation
Q 2/9
Score 0
How do we get the discriminant of quadratic equations?
30
By substituting the values a, b and c in .
By substituting the values a, b and c in .
By substituting the values a, b and c in
By substituting the values a, b and c in b2 – 4ac.
9 questions
Q.
What is a discriminant?
1
30 sec
Q.
How do we get the discriminant of quadratic equations?
2
30 sec
Q.
What is the nature of roots if the discriminant is -3?
3
30 sec
Q.
What is the discriminant of the quadratic equation 3x2 – 2x + 4 = 0?
4
30 sec
Q.
Your classmate says that the quadratic equation 2x2 + 5x – 4 = 0 has two rational and unequal roots because the value of its discriminant is positive. Do you agree with your classmate?
5
30 sec
Q.
How do we get the sum of the roots of quadratic equations?
6
30 sec
Q.
How do we get the product of quadratic equations?
7
30 sec
Q.
What is the sum of the roots of 2x2 – 50 = 0?
8
30 sec
Q.
Your classmate says that the standard form of the quadratic given the roots -3 and 15 is quadratic x2 + 12x – 45. Do you agree with your classmate?
