Change the subject where the unknown appears twice

In this lesson, we will be changing the subject of a formula in which the unknown appears twice.

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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. What is the solution set for 10x² + 33x - 7≤ 0?

1/3

Q2.2. What is the solution set for 2x² + 2x – 30 < 5x + 24?

2/3

Q3.3. Which option is a quadratic inequality that has a solution set of {x: x >1.5 ∪ x < -0.5}?

3/3

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. What is the solution set for 10x² + 33x - 7≤ 0?

1/3

Q2.2. What is the solution set for 2x² + 2x – 30 < 5x + 24?

2/3

Q3.3. Which option is a quadratic inequality that has a solution set of {x: x >1.5 ∪ x < -0.5}?

3/3

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:

Change the subject where the unknown appears twice

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

Q1.Make t the subject of the formula.

1/3

Q2.Make b the subject of the formula.

2/3

Q3.Make x the subject of the formula.

3/3

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:

Change the subject where the unknown appears twice

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

Q1.Make t the subject of the formula.

1/3

Q2.Make b the subject of the formula.

2/3

Q3.Make x the subject of the formula.

3/3

Lesson summary: Change the subject where the unknown appears twice

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