In a graph, if two curves touch at a point but do not cross, that area is called

In a graph, if two curves touch at a point but do not cross, that area is called

• A. Tangency
• B. Intersection
• C. Convergence
• D. Node

Answer: (A)

Tangency is when two curves meet at a point and graze each other without crossing. At that contact point, they share a common tangent line, so their slopes match there. You can picture one curve just kissing the other at that point. If the curves were to cross, they would intersect with different directions as they pass through the point, not touch tangentially. Other terms aren’t describing this grazed touch: convergence isn’t about curves meeting, and a node refers to a more complex meeting or a sharp point in a curve, not a simple touch.

Tangency is when two curves meet at a point and graze each other without crossing. At that contact point, they share a common tangent line, so their slopes match there. You can picture one curve just kissing the other at that point. If the curves were to cross, they would intersect with different directions as they pass through the point, not touch tangentially. Other terms aren’t describing this grazed touch: convergence isn’t about curves meeting, and a node refers to a more complex meeting or a sharp point in a curve, not a simple touch.