Solutions for Chapter 4.8: THE SURGE FUNCTION AND DRUG CONCENTRATION

The absolute value of the complex number z = a + b is given by ?a2+b2; also, the length of the segment from the origin to z in the complex plane.

See Inverse cosine function.

An association between the points in a plane and ordered pairs of real numbers; or an association between the points in three-dimensional space and ordered triples of real numbers

The number r2 or R2 that measures how well a regression curve fits the data

An arrangement of elements of a set, in which order is not important

ƒ'(a) exists

The angle the arrow makes with the positive x-axis

Ax + By + C = 0, where A and B are not both zero.

A sequence {an}in which an = an-1.r for every positive integer n ? 2. The nonzero number r is called the common ratio.

A graph of a polar equation r = a b sin u or r = a b cos u with a > 0 b > 0

The path along which an object travels

A value ƒ(c) is a local maximum of ƒ if there is an open interval I containing c such that ƒ(x) < ƒ(c) for all values of x in I

For the line segment with endpoints (a,b) and (c,d), (aa + c2 ,b + d2)

Two vectors u and v with u x v = 0.

See Polar coordinate system.

The process of fitting a polynomial of degree n to (n + 1) points.

A line joining two points of the graph of ƒ.

One-half of the sum of the lengths of the sides of a triangle.

An end behavior asymptote that is a slant line

The rectangular portion of the coordinate plane specified by the dimensions [Xmin, Xmax] by [Ymin, Ymax].