When travelling on a road, you are either going to travel parallel to another road or you will eventually cross it. Lines are very much the same. Two lines on the Cartesian plane are either parallel or intersecting. If lines are intersecting, we want to find where they cross or their point of intersection.
You may also like
Learn what the slope intercept form of a line in the Cartesian plane is. Practicing finding the equation of lines in the plane.
Learn what a geometric series. Learn how to identify the general and recursive terms. Find the partial sum and much more.
The length of a line is not necessarily a practical value as a line goes on for ever. The length of a line is infinite. However, the length of a line segment is of more value and is a finite value. Any time we measure how long a package is or how long our table is, we are taking the length of a line segment. Learn the formula for finding the length of a line segment when given two points in either 2 dimensions or in 3 dimensions.
Practice using the sine law and the cosine law through word problems.