Quadratic formula and discriminant

Front

What is the quadratic formula?

Back

Front

What does the discriminant tell us about the solutions of a quadratic equation?

Back

Front

If the discriminant is equal to -2, how many real solutions are there?

Back

None.

Front

What are the solutions of a quadratic equation also called?

Back

Roots, x-intercepts, or zeros.

Front

Back

76.

Front

Back

a = 2, b = -3, c = -5.

Front

Back

x = -0.67, x = 6.

Front

What is the standard form of a quadratic equation?

Back

Front

What does it mean if the discriminant is zero?

Back

It means that the quadratic equation has exactly one real solution (a repeated root).

Front

How can you determine if a quadratic equation opens upwards or downwards?

Back