Quadratic formula and discriminant

Front

What is the quadratic formula?

Back

Tags

CCSS.HSA-REI.B.4B

Front

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

Back

Tags

CCSS.HSA-REI.B.4B

Front

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

Back

None.

Tags

CCSS.HSA-REI.B.4B

Front

What are the solutions of a quadratic equation also called?

Back

Roots, x-intercepts, or zeros.

Front

Back

76.

Tags

CCSS.HSA-REI.B.4B

Front

Back

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

Front

Back

x = -0.67, x = 6.

Tags

CCSS.HSA-REI.B.4B

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).

Tags

CCSS.HSA-REI.B.4B

Front

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

Back

Tags

CCSS.HSF-IF.C.7A