 9.4.1: In Exercises 14, match the linear inequality with the correct graph
 9.4.2: In Exercises 14, match the linear inequality with the correct graph
 9.4.3: In Exercises 14, match the linear inequality with the correct graph
 9.4.4: In Exercises 14, match the linear inequality with the correct graph
 9.4.5: In Exercises 520, graph each linear inequality.
 9.4.6: In Exercises 520, graph each linear inequality.
 9.4.7: In Exercises 520, graph each linear inequality.
 9.4.8: In Exercises 520, graph each linear inequality.
 9.4.9: In Exercises 520, graph each linear inequality.
 9.4.10: In Exercises 520, graph each linear inequality.
 9.4.11: In Exercises 520, graph each linear inequality.
 9.4.12: In Exercises 520, graph each linear inequality.
 9.4.13: In Exercises 520, graph each linear inequality.
 9.4.14: In Exercises 520, graph each linear inequality.
 9.4.15: In Exercises 520, graph each linear inequality.
 9.4.16: In Exercises 520, graph each linear inequality.
 9.4.17: In Exercises 520, graph each linear inequality.
 9.4.18: In Exercises 520, graph each linear inequality.
 9.4.19: In Exercises 520, graph each linear inequality.
 9.4.20: In Exercises 520, graph each linear inequality.
 9.4.21: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.22: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.23: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.24: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.25: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.26: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.27: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.28: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.29: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.30: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.31: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.32: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.33: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.34: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.35: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.36: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.37: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.38: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.39: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.40: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.41: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.42: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.43: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.44: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.45: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.46: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.47: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.48: In Exercises 2148, graph each system of inequalities or indicate th...
 9.4.49: Find the area enclosed by the system of inequalities.
 9.4.50: Find the area enclosed by the system of inequalities.
 9.4.51: Find the area enclosed 10 by the system of linear inequalities 0 (a...
 9.4.52: Find the area enclosed by the system of linear inequalities (assume...
 9.4.53: After backtobacktobacktoback hurricanes (Charley, Frances, Iv...
 9.4.54: Repeat Exercise 53 with a smaller truck and different supplies. Sup...
 9.4.55: A diet must be designed to provide at least 275 units of calcium, 1...
 9.4.56: A diet must be designed to provide at least 350 units of calcium, 1...
 9.4.57: A manufacturer produces two types of computer mouse: USB wireless m...
 9.4.58: A manufacturer produces two types of mechanical pencil lead: 0.5 mi...
 9.4.59: Write a system of linear inequalities corresponding to the consumer...
 9.4.60: Write a system of linear inequalities corresponding to the producer...
 9.4.61: Calculate the consumer surplus given the supply and demand equations.
 9.4.62: Calculate the producer surplus given the supply and demand equations.
 9.4.63: In Exercises 63 and 64, explain the mistake that is made.
 9.4.64: In Exercises 63 and 64, explain the mistake that is made.
 9.4.65: A linear inequality always has a solution that is a halfplane.
 9.4.66: A dashed curve is used for strict inequalities.
 9.4.67: A solid curve is used for strict inequalities.
 9.4.68: A system of linear inequalities always has a solution.
 9.4.69: Describe the solution when a b and c d.
 9.4.70: What will the solution be if a b and c d, given the system of linea...
 9.4.71: If a and b are positive real numbers, graph the solution.
 9.4.72: If a and b are negative real numbers, graph the solution.
 9.4.73: In Exercises 73 and 74, use a graphing utility to graph the followi...
 9.4.74: In Exercises 73 and 74, use a graphing utility to graph the followi...
 9.4.75: In Exercises 75 and 76, use a graphing utility to graph each system...
 9.4.76: In Exercises 75 and 76, use a graphing utility to graph each system...
Solutions for Chapter 9.4: Systems of Linear Inequalities in Two Variables
Full solutions for Algebra and Trigonometry,  3rd Edition
ISBN: 9780840068132
Solutions for Chapter 9.4: Systems of Linear Inequalities in Two Variables
Get Full SolutionsSince 76 problems in chapter 9.4: Systems of Linear Inequalities in Two Variables have been answered, more than 44842 students have viewed full stepbystep solutions from this chapter. Chapter 9.4: Systems of Linear Inequalities in Two Variables includes 76 full stepbystep solutions. This expansive textbook survival guide covers the following chapters and their solutions. This textbook survival guide was created for the textbook: Algebra and Trigonometry,, edition: 3. Algebra and Trigonometry, was written by and is associated to the ISBN: 9780840068132.

Census
An observational study that gathers data from an entire population

Commutative properties
a + b = b + a ab = ba

Compound fraction
A fractional expression in which the numerator or denominator may contain fractions

Conjugate axis of a hyperbola
The line segment of length 2b that is perpendicular to the focal axis and has the center of the hyperbola as its midpoint

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

Gaussian curve
See Normal curve.

Gaussian elimination
A method of solving a system of n linear equations in n unknowns.

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

Independent variable
Variable representing the domain value of a function (usually x).

Inverse of a matrix
The inverse of a square matrix A, if it exists, is a matrix B, such that AB = BA = I , where I is an identity matrix.

Inverse reflection principle
If the graph of a relation is reflected across the line y = x , the graph of the inverse relation results.

NINT (ƒ(x), x, a, b)
A calculator approximation to ?ab ƒ(x)dx

nth power of a
The number with n factors of a , where n is the exponent and a is the base.

Parallelogram representation of vector addition
Geometric representation of vector addition using the parallelogram determined by the position vectors.

Polar coordinates
The numbers (r, ?) that determine a point’s location in a polar coordinate system. The number r is the directed distance and ? is the directed angle

Probability of an event in a finite sample space of equally likely outcomes
The number of outcomes in the event divided by the number of outcomes in the sample space.

Range (in statistics)
The difference between the greatest and least values in a data set.

Recursively defined sequence
A sequence defined by giving the first term (or the first few terms) along with a procedure for finding the subsequent terms.

Transformation
A function that maps real numbers to real numbers.

Vertex of a cone
See Right circular cone.