Learn to find the zeros of a quadratic using the quadratic formula

Learn to find the zeros 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 a quadratic equation by first setting it to zero and ensuring the quadratic term is positive. It then covers identifying the coefficients (A, B, C) and calculating the discriminant to determine the nature of the solutions. The quadratic formula is applied to find the solutions, which are then simplified. The instructor also addresses common student mistakes and questions, emphasizing the importance of correctly identifying coefficients and understanding the nature of solutions.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving a quadratic equation?

Factor the equation

Determine the discriminant

Set the equation equal to zero

Use the quadratic formula

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to make the quadratic term positive?

To prevent calculation errors

To avoid negative solutions

To simplify the equation

To ensure the equation is factorable

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the discriminant tell us about a quadratic equation?

The vertex of the parabola

The product of the roots

The type of solutions

The sum of the roots

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you calculate the discriminant of a quadratic equation?

A^2 + B^2 - C^2

B^2 - 4AC

2A + B - C

B^2 + 4AC

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the quadratic formula used for?

Determining the axis of symmetry

Solving quadratic equations

Solving linear equations

Finding the vertex of a parabola