How do you find the slope of a line parallel to the graph of each question y=3x-8?
1 Answer
Apr 1, 2015
Parallel lines have the same slope. Think slope as the angle between the line and the x-axis. So it makes sense that the slopes have to be equal.
The standart form formula is
The slope is:
If you can't remember this, you can calculate the slope by selecting two random points on the line
The slope is:
So any line with slope
So we can say this:
A line is parallel to another if and only if their slopes are equal.