3 The equation of a straight line through two points
The equation of the line passing through the points with coordinates and is given by the following formula.
Task!
Find the equation of the line passing through and .
First apply the formula:
.
Simplify this to obtain the required equation:
Exercises
- Find the equation of the line joining and .
- Find the gradient and vertical intercept of the line joining and .
- .
- 0.4, .