Precalculus: Mathematics for Calculus (Standalone Book) 7th Edition - Solutions by Chapter

0 + 0i is the complex number zero

The argument of a + bi is the direction angle of the vector {a,b}.

The function y = cos x

See Equilibrium point.

A procedure for fitting an exponential function to a set of data.

A special case of a limit that does not exist.

Point where a curve crosses the x-, y-, or z-axis in a graph.

The function y = sin-1 x

An inequality that can be written in one of the following forms: y 6 mx + b, y … mx + b, y 7 mx + b, or y Ú mx + b with m Z 0

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

The multiplicity of a zero c of a polynomial ƒ(x) of degree n > 0 is the number of times the factor (x - c) (x - z 2) Á (x - z n)

A distribution of data shaped like the normal curve.

A triangle in which one angle is greater than 90°.

A set is ordered if it is possible to compare any two elements and say that one element is “less than” or “greater than” the other.

See Parametric equations.

A function that assigns real-number values to the outcomes in a sample space.

See Reference triangle

A logarithmic scale used in measuring the intensity of an earthquake.

A sum where the interval is divided into n subintervals of equal length and is in the ith subinterval.

See Component form of a vector.