To intersect.
scalene ?
intersecting line.
Intersecting lines
Two lines that cross at a point are said to intersect. The point where they meet is called the point of intersection. If the lines are not parallel, they will always cross at exactly one point in a two-dimensional plane. In contrast, parallel lines never intersect and thus do not meet at any point.
Perpendicular?
If two lines intersect, they intersect in exactly one point. This point is the location where the two lines cross each other in a two-dimensional plane. In Euclidean geometry, two distinct lines can either intersect at one point or be parallel, in which case they do not intersect at all.
A tangent line touches the circumference of a circle exactly at one point.
1.15
1.15
No. A pair of linear equation can have 0 solutions (they are parallel), or one solution (they cross at one point) or an infinite number of solutions (they represent the same line).
Yes. Remember that the intercepts are where the line crosses the axis. Since each axis is also a line this is the same as saying that any two lines that cross, cross at only one point. I wonder if a curved line could perhaps cross an axis twice.
Tangent