Exploring the Quadratic Formula and Discriminant

Exploring the Quadratic Formula and Discriminant

Assessment

Interactive Video

Mathematics

8th - 12th Grade

Hard

CCSS
HSA-REI.B.4B, 7.EE.B.4A, HSF.LE.B.5

Standards-aligned

Created by

Amelia Wright

FREE Resource

Standards-aligned

CCSS.HSA-REI.B.4B
,
CCSS.7.EE.B.4A
,
CCSS.HSF.LE.B.5
The video tutorial covers an algebra lesson focusing on solving equations using the quadratic formula. It begins with warm-up questions, followed by a detailed explanation of factoring polynomials and finding solutions. The quadratic formula is introduced, including its components and how to use it to solve quadratic equations. The tutorial also covers the application of the formula in real-world scenarios and explains the concept of the discriminant, which helps determine the number of real solutions.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the solutions to the equation after factoring it in the warm-up question?

2 and 3

3 and 1/2

1/2 and 3

3/2 and 1/3

Tags

CCSS.HSA-REI.B.4B

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What must be done first to solve the second warm-up question?

Subtract 27 from both sides

Add 27 to both sides

Divide by 27

Move 27 to the left side

Tags

CCSS.7.EE.B.4A

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the quadratic formula used for?

Solving linear equations

Solving quadratic equations

Finding the area of a triangle

Calculating the slope of a line

Tags

CCSS.HSA-REI.B.4B

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the quadratic formula not always used for solving quadratic equations?

It is too complex

Factoring is usually quicker

It only works for linear equations

It requires a graphing calculator

Tags

CCSS.HSA-REI.B.4B

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the coefficients in the quadratic equation 2x^2 + 4x + 16?

a=3, b=2, c=1

a=1, b=5, c=13

a=2, b=4, c=16

a=4, b=-1, c=5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving a quadratic equation using the quadratic formula?

Square the coefficients

Write the equation in standard form

Identify the coefficients

Divide by the leading coefficient

Tags

CCSS.HSA-REI.B.4B

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the baseball problem, what does the y-value represent?

Time

Height

Speed

Horizontal distance

Tags

CCSS.HSF.LE.B.5

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