Quadratic Formula and Discriminant

Quadratic Formula and Discriminant

Assessment

Flashcard

Mathematics

8th - 9th Grade

Practice Problem

Hard

CCSS
HSA-REI.B.4B, HSF-IF.C.7A

Standards-aligned

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the Quadratic Formula?

Back

x = (-b ± √(b² - 4ac)) / (2a)

Tags

CCSS.HSA-REI.B.4B

2.

FLASHCARD QUESTION

Front

What is the Discriminant?

Back

The Discriminant is given by the formula b² - 4ac.

Tags

CCSS.HSA-REI.B.4B

3.

FLASHCARD QUESTION

Front

What does a positive Discriminant indicate about the roots of a quadratic equation?

Back

It indicates that there are two distinct real solutions.

Tags

CCSS.HSA-REI.B.4B

4.

FLASHCARD QUESTION

Front

What does a Discriminant of zero indicate?

Back

It indicates that there is exactly one real solution (a repeated root).

Tags

CCSS.HSA-REI.B.4B

5.

FLASHCARD QUESTION

Front

What does a negative Discriminant indicate?

Back

It indicates that there are no real solutions (the solutions are complex).

Tags

CCSS.HSA-REI.B.4B

6.

FLASHCARD QUESTION

Front

How do you determine the number of roots from the Discriminant?

Back

If b² - 4ac > 0, there are 2 roots; if b² - 4ac = 0, there is 1 root; if b² - 4ac < 0, there are no real roots.

Tags

CCSS.HSA-REI.B.4B

7.

FLASHCARD QUESTION

Front

What is the vertex of a parabola represented by a quadratic equation?

Back

The vertex is the point (h, k) where h = -b/(2a) and k is the value of the quadratic function at h.

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