A secant line, also simply called a secant, is **a line passing through two points of a curve**. In geometry, a secant line commonly refers to a line that intersects a circle at exactly two points (Rhoad et al. 1984, p. 429). There are a number of interesting theorems related to secant lines.

Contents

- 1 What is difference between secant and chord?
- 2 How do you find secant?
- 3 Is tangent a secant?
- 4 What is meant by secant and tangent?
- 5 Is a secant always a chord?
- 6 How do you draw a secant line on a graph?
- 7 Where is a secant of a circle?
- 8 What is a secant in a circle?
- 9 Is a secant a line?
- 10 What is a secant line in calculus?
- 11 What is the difference of a secant and a tangent of a circle?

## What is difference between secant and chord?

A straight line that intersects a circle in two points is called a secant line. A chord is the line segment that joins two distinct points of the circle.

## How do you find secant?

A line that intersects a circle in two points is called a secant line. Secant means ‘to cut’ extracted from a Latin word ‘secare’. In a circle, a secant will touch the circle in exactly two points and a chord is the line segment defined by these two points. Below, ↔AB is a secant.

## Is tangent a secant?

Tangents and secants are the lines that cut the circle and extend in both directions infinitely. The main difference between them is that a secant cuts the circle at two points, whereas, a tangent cuts the circle at one point. The tangent is perpendicular to the radius at the point of the tangency.

## What is meant by secant and tangent?

A tangent line just touches a curve at a point, matching the curve’s slope there. (From the Latin tangens “touching”, like in the word “tangible”.) A secant line intersects two or more points on a curve. ( From the Latin secare “cut or sever”) They are lines, so extend in both directions infinitely.

## Is a secant always a chord?

A secant is technically not a chord, but it contains a chord (the segment between the two red intersection points).

## How do you draw a secant line on a graph?

To do this, we follow these steps:

- Find two points on the secant line.
- Find the slope of the line between the two points.
- Plug one of your points and your slope into the point slope form of your line to obtain an equation of the line.

## Where is a secant of a circle?

The secant of a circle is a line or line segment that intersects the circle at two points.

## What is a secant in a circle?

In geometry, a secant is a line that intersects a curve at a minimum of two distinct points. The word secant comes from the Latin word secare, meaning to cut. In the case of a circle, a secant intersects the circle at exactly two points.

## Is a secant a line?

A secant line, also simply called a secant, is a line passing through two points of a curve. In geometry, a secant line commonly refers to a line that intersects a circle at exactly two points (Rhoad et al.

## What is a secant line in calculus?

Secant line is a line that touches a curve at two points, pretty much the average rate of change because it is the rate of change between two points on a curve (x1,y1), (x2,y2) the average rate of change is = (y2-y1)/(x2-x1) which is the slope of the secant line between the two points on the curve.

## What is the difference of a secant and a tangent of a circle?

A line that intersects a circle in exactly one point is called a tangent and the point where the intersection occurs is called the point of tangency. The tangent is always perpendicular to the radius drawn to the point of tangency. A secant is a line that intersects a circle in exactly two points.