Textbook
Chapter 1: Indices
Chapter 2: Standard Form
Chapter 3: Consumer Mathematics: Savings and Investments, Credit and Debt
Chapter 4: Scale Drawings
Chapter 5: Trigonometric Ratios
Chapter 6: Angles and Tangents of Circles
Chapter 7: Plans and Elevations
Chapter 8: Loci in Two Dimensions
Chapter 9: Straight Lines
Chapter 9: Straight Lines
What you need to learn in this chapter
In this chapter, we will be learning about straight lines. We will start by understanding the equation y = mx + c and how it relates to the gradient and y-intercept of a line. We will also learn how to interpret and manipulate equations of straight lines in other forms, such as ax + by = c and (x/a) + (y/b) = 1, and convert them to the form y = mx + c, and vice versa. By the end of this chapter, we will be able to confidently work with equations of straight lines and understand their properties.
Topics in this chapter
1. Straight Lines
What you will learn in this topic
- Make connection between the equation, y = mx + c, and the gradient and y-intercept, and hence make generalisation about the equation of a straight line
- Investigate and interpret the equations of straight lines in other forms such as ax + by = c and (x/a) + (y/b) = 1, and change to the form of y = mx + c, and vice versa
- Investigate and make inference about the relationship between the points on a straight line and the equation of the line
- Investigate and make inference about the gradients of parallel lines
- Determine the equation of a straight line
- Determine the point of intersection of two straight lines
- Solve problems involving straight lines
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