Parallel Lines
In a graph, the properties of parallel lines share the same gradient. As the slope doesn't change m remains the same for both line equations.
Perpendicular Line
A perpendicular line is a line that bisects another line, going through the midpoint creating a right angle at the point of intersection 
The formula to calculate the gradient for perpendicular line
As we have reached the end of the unit 3
Amazing
ReplyDeleteThis is so simple when you explain :)
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