Slope Formula

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Lesson Objective
This lesson shows you how the slope formula is derived and some examples on using the formula.
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About This Lesson
After defining the slope of a line as the ratio of the 'change in y' and 'change in x', we can use this definition to derive the slope formula.

This lesson will show you the steps to derive this formula. Also, you will able to see some examples on using this formula.

You should proceed by reading the study tips and watch the math video below. After that, you can try out the practice questions.
Slope formula or gradient formula

Study Tips

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Tip #1
Understand how the 'change in y' and 'change in x' are calculated. To recall them, you can watch the first math video in the slope of a line lesson.
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Tip #2
It is important to understand the slope formula before using it. You will be more comfortable with the formula once you have understood it.
Now, watch the following math video to learn more.

Math Video

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Click play to watch video
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Math Video Transcript

Practice Questions & More

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Multiple Choice Questions (MCQ)
Now, let's try some MCQ questions to understand this lesson better.

You can start by going through the series of questions on slope formula or pick your choice of question below.
  1. Question 1 on using the slope formula
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