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# Solutions for Chapter 1.8: Combinations of Functions: Composite Functions

## Full solutions for Precalculus | 7th Edition

ISBN: 9780618643448

Solutions for Chapter 1.8: Combinations of Functions: Composite Functions

Solutions for Chapter 1.8
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##### ISBN: 9780618643448

This textbook survival guide was created for the textbook: Precalculus, edition: 7. Precalculus was written by and is associated to the ISBN: 9780618643448. Since 80 problems in chapter 1.8: Combinations of Functions: Composite Functions have been answered, more than 30073 students have viewed full step-by-step solutions from this chapter. Chapter 1.8: Combinations of Functions: Composite Functions includes 80 full step-by-step solutions. This expansive textbook survival guide covers the following chapters and their solutions.

Key Calculus Terms and definitions covered in this textbook
• Annual percentage yield (APY)

The rate that would give the same return if interest were computed just once a year

• Binomial

A polynomial with exactly two terms

• Discriminant

For the equation ax 2 + bx + c, the expression b2 - 4ac; for the equation Ax2 + Bxy + Cy2 + Dx + Ey + F = 0, the expression B2 - 4AC

• Distance (on a number line)

The distance between real numbers a and b, or |a - b|

• Imaginary unit

The complex number.

• Linear inequality in x

An inequality that can be written in the form ax + b < 0 ,ax + b … 0 , ax + b > 0, or ax + b Ú 0, where a and b are real numbers and a Z 0

• Monomial function

A polynomial with exactly one term.

• Multiplication property of inequality

If u < v and c > 0, then uc < vc. If u < and c < 0, then uc > vc

• Opens upward or downward

A parabola y = ax 2 + bx + c opens upward if a > 0 and opens downward if a < 0.

• Orthogonal vectors

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

• PH

The measure of acidity

• Polar coordinate system

A coordinate system whose ordered pair is based on the directed distance from a central point (the pole) and the angle measured from a ray from the pole (the polar axis)

• Quartic regression

A procedure for fitting a quartic function to a set of data.

• Reciprocal function

The function ƒ(x) = 1x

• Repeated zeros

Zeros of multiplicity ? 2 (see Multiplicity).

• Secant line of ƒ

A line joining two points of the graph of ƒ.

• Solution of an equation or inequality

A value of the variable (or values of the variables) for which the equation or inequality is true

• Spiral of Archimedes

The graph of the polar curve.

• Sum of an infinite series

See Convergence of a series

• Wrapping function

The function that associates points on the unit circle with points on the real number line

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