# Composite functions

In this lesson, we will apply more than one function to a number or a variable using substitution, knowledge of expanding brackets and also apply these skills to solving equations such as fg(x) = h(x)

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.f(𝑥) = 5𝑥 Solve the following equation f(𝑥) = 95

1/3

Q2.

2/3

Q3.

3/3

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.f(𝑥) = 5𝑥 Solve the following equation f(𝑥) = 95

1/3

Q2.

2/3

Q3.

3/3

# 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.

Quiz:

# Composite Functions -

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

Quiz:

# Composite Functions -

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: Composite functions

## Time to move!

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

For 5 mins...

Move around:
Climb stairs

On the spot:
Dance