The Discriminant

Question 1

I have a linear function and a quadratic function. The discriminant of them is = 0. What does this mean?

Answer 1

They intersect at one point

Question 2

What is the discriminant of ax^2+bx+c=0?

Answer 2

b^2-4ac

Question 3

If my function has 2 real roots the discriminant will be:

Answer 3

The discriminant > 0

Question 4

I have a linear function and a quadratic function. The discriminant of them is > 0. What does this mean?

Answer 4

They intersect at 2 different points

Question 5

What is the value of b in the quadratic 4x^2 - 3 + 4x = 0

Answer 5

4

Question 6

If my function has 0 real roots the discriminant will be:

Answer 6

The discriminant < 0

Question 7

If a function has 2 equal roots, the discriminant will be…

Answer 7

=0

Question 8

What is the value of c in the quadratic 5x^3 - 2x = 7

Answer 8

-7

Question 9

If my function has 1 real root the discriminant will be:

Answer 9

The discriminant = 0

Question 10

I have a linear function and a quadratic function. The discriminant of them is < 0. What does this mean?

Answer 10

They do not intersect