Why is the answer to this secant?

1.A secant line is a straight line joining two points on a function. ... It is also equivalent to the average rate of change, or simply the slope between two points. The average rate of change of a function between two points and the slope between two points are the same thing.

2.A secant line, or just secant, is the infinite line extension of a chord. More generally, a chord is a line segment joining two points on any curve, for instance, an ellipse. A chord that passes through a circle's center point is the circle's diameter. Every diameter is a chord, but not every chord is a diameter.

3.The secant ( sec ⁡ ) (\sec) (sec)

The secant is the reciprocal of the cosine. It is the ratio of the hypotenuse to the side adjacent to a given angle in a right triangle.

4.The line between those two points is called a secant line. The slope is the m in the equation for any line, y=mx+b. The slope describes whether the line is going down or up on the graph, and how quickly it is doing so. While a secant line has a slope, the two are otherwise rather unrelated.

5.Secant (line) A line that intersects two or more points on a curve. ( From the Latin secare "to cut") (A line that just touches a curve at a point and matches the curve's slope there, is called a "tangent".) See: Secant (function)

6.Intersecting Secants Theorem. If two secant segments are drawn to a circle from an exterior point, then the product of the measures of one secant segment and its external secant segment is equal to the product of the measures of the other secant segment and its external secant segment.