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In Coordinate geometry for grade 11, you will expect to handle lines and points as well as the related calculations. It is important for you to keep your accurate geometrical instruments close.

LEARNING OBJECTIVES

At the end of this chapter you should be able to:

• Calculate the length of a straight line
• Calculate the mid-point of two points
• Calculate the gradient of a line segment
• Find the equation of a straight line
• Find the gradients of parallel and perpendicular lines
• Use gradients of parallel and perpendicular lines to find equations

## Expected Knowledge in Coordinate Geometry

• Length (distance formula)
• Mid-point
• Double intercept form
• Parallel lines
• Perpendicular lines

SKILLS

VALUES

• Curiosity in using distance and gradient formula.
• Recognition of distance and gradient formula.

Remember, mathematics is a practical subject, follow the instructor and tutor’s explanations and try to implement on your own, before you try to tackle the practical exercises.

Also, don’t forget to explore the Pastpaper page for more exercise and revisions

All the best!

### What Will You Learn?

• Calculate the length of a straight line
• Calculate the mid-point of two points
• Calculate the gradient of a line segment
• Find the equation of a straight line
• Find the gradients of parallel and perpendicular lines
• Use gradients of parallel and perpendicular lines to find equations

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