Solving Quadratic Equations Graphically

In this lesson, we will interpret graphs of quadratic equations in order to find their solutions. We will investigate the key features of quadratic graphs that help us identify their solutions.

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Unit quizzes are being retired in August 2023

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Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.1. True or False, here is the graph of 2x²+ 1?

1/4

Q2.Here are four quadratic graphs. The red curve shows y = x². Which equation is the yellow curve labelled i?

2/4

Q3.3. Here is a table of values for y = 3x²– 1 Which number is missing?

3/4

Q4.4. Which option is true for f(x)= 0.5x² - 1 ?

4/4

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.1. True or False, here is the graph of 2x²+ 1?

1/4

Q2.Here are four quadratic graphs. The red curve shows y = x². Which equation is the yellow curve labelled i?

2/4

Q3.3. Here is a table of values for y = 3x²– 1 Which number is missing?

3/4

Q4.4. Which option is true for f(x)= 0.5x² - 1 ?

4/4

Video

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Worksheet

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Solving Quadratic Equations Graphically

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.

1/4

Q2.

2/4

Q3.

3/4

Q4.

4/4

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Solving Quadratic Equations Graphically

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.

1/4

Q2.

2/4

Q3.

3/4

Q4.

4/4

Lesson summary: Solving Quadratic Equations Graphically

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