 P.9.151: In Exercises 151153, express each interval in setbuilder notation ...
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 P.9.154: In Exercises 154157, use graphs to fi nd each set(2, 1] [1, 3)
 P.9.155: In Exercises 154157, use graphs to fi nd each set2, 1] [1, 3)
 P.9.156: In Exercises 154157, use graphs to fi nd each set1, 3) (0, 4)
 P.9.157: In Exercises 154157, use graphs to fi nd each set[1, 3) (0, 4)
 P.9.158: In Exercises 158167, solve each inequality. Use interval notation t...
 P.9.159: In Exercises 158167, solve each inequality. Use interval notation t...
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 P.9.168: A car rental agency rents a certain car for $40 per day with unlimi...
 P.9.169: To receive a B in a course, you must have an average of at least 80...
Solutions for Chapter P.9: Precalculus 5th Edition
Full solutions for Precalculus  5th Edition
ISBN: 9780321837349
Solutions for Chapter P.9
Get Full SolutionsThis textbook survival guide was created for the textbook: Precalculus, edition: 5. This expansive textbook survival guide covers the following chapters and their solutions. Chapter P.9 includes 19 full stepbystep solutions. Precalculus was written by and is associated to the ISBN: 9780321837349. Since 19 problems in chapter P.9 have been answered, more than 6272 students have viewed full stepbystep solutions from this chapter.

Annual percentage rate (APR)
The annual interest rate

Average rate of change of ƒ over [a, b]
The number ƒ(b)  ƒ(a) b  a, provided a ? b.

Chord of a conic
A line segment with endpoints on the conic

Conversion factor
A ratio equal to 1, used for unit conversion

equation of a parabola
(x  h)2 = 4p(y  k) or (y  k)2 = 4p(x  h)

Halfplane
The graph of the linear inequality y ? ax + b, y > ax + b y ? ax + b, or y < ax + b.

Hyperboloid of revolution
A surface generated by rotating a hyperbola about its transverse axis, p. 607.

Imaginary part of a complex number
See Complex number.

Length of a vector
See Magnitude of a vector.

Logistic regression
A procedure for fitting a logistic curve to a set of data

Magnitude of an arrow
The magnitude of PQ is the distance between P and Q

Modified boxplot
A boxplot with the outliers removed.

Modulus
See Absolute value of a complex number.

Multiplicative inverse of a matrix
See Inverse of a matrix

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

Polar distance formula
The distance between the points with polar coordinates (r1, ?1 ) and (r2, ?2 ) = 2r 12 + r 22  2r1r2 cos 1?1  ?22

Reflection across the xaxis
x, y and (x,y) are reflections of each other across the xaxis.

Sum of functions
(ƒ + g)(x) = ƒ(x) + g(x)

Supply curve
p = ƒ(x), where x represents production and p represents price

Transitive property
If a = b and b = c , then a = c. Similar properties hold for the inequality symbols <, >, ?, ?.