How to find the solutions of a quadratic using the quadratic formula

How to find the solutions of a quadratic using the quadratic formula

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial explains how to solve quadratic equations using the quadratic formula. It begins by setting the equation to zero and identifying the coefficients A, B, and C. The discriminant is calculated to determine the type of solutions. Finally, the quadratic formula is applied to find the exact solutions, demonstrating the process step-by-step.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

Set the equation to zero

Identify the roots

Calculate the discriminant

Find the vertex

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the equation 4x^2 + x - 3 = 0, what is the value of the coefficient 'a'?

4

1

-3

3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the discriminant help determine in a quadratic equation?

The axis of symmetry

The type of solutions

The vertex

The maximum value

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula for the discriminant in a quadratic equation?

c^2 - 4ab

2a + b

a^2 + b^2

b^2 - 4ac

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the quadratic formula used to find?

The axis of symmetry

The solutions for x

The maximum value of the function

The y-intercept

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the quadratic formula, what does the term under the square root represent?

The axis of symmetry

The y-intercept

The discriminant

The vertex

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the solutions for the equation 4x^2 + x - 3 = 0 using the quadratic formula?

x = 2 and x = -2

x = 3/4 and x = -1

x = 0 and x = 1

x = 1 and x = -1