# Work out gradient of line perpendicular to a given line

In this lesson, we will investigate the the gradient of a line that is perpendicular to a given line. We will use knowledge of reciprocals to calculate the gradient of perpendicular lines.

#### 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.What is the equation of the line in this conversion graph?

1/4

Q2.What does the gradient represent on this conversion graph?

2/4

Q3.The graph shows the cost of one person going ten-pin bowling, including the standing charge for shoe hire. How much does it cost to hire bowling shoes?

3/4

Q4.The graph shows the cost of one person going ten-pin bowling, including the standing charge for shoe hire. How much does each game cost each person?

4/4

#### 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.What is the equation of the line in this conversion graph?

1/4

Q2.What does the gradient represent on this conversion graph?

2/4

Q3.The graph shows the cost of one person going ten-pin bowling, including the standing charge for shoe hire. How much does it cost to hire bowling shoes?

3/4

Q4.The graph shows the cost of one person going ten-pin bowling, including the standing charge for shoe hire. How much does each game cost each person?

4/4

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

#### Unit quizzes are being retired in August 2023

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

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

Q1.

1/3

Q2.

2/3

Q3.

3/3

#### Unit quizzes are being retired in August 2023

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

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

Q1.

1/3

Q2.

2/3

Q3.

3/3

# Lesson summary: Work out gradient of line perpendicular to a given line

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Walk

On the spot:
Dance