""Contents""; ""Introduction""; ""Chapter 1 About Pre-Calculus""; ""Talk of Math""; ""Most People""; ""Places for Games""; ""Computer Games and Classrooms""; ""Visual Formula""; ""A Part of Life""; ""Disorganized Territory""; ""Algebra and Trigonometry""; ""Additional Reading""; ""Chapter 2 Number Systems and Properties""; ""Number Systems""; ""Natural or Counting Numbers""; ""Whole Numbers Offer You Zero""; ""Integers Provide Negative Numbers""; ""Rational Numbers""; ""No Division by Zero""; ""Variations on Rational Numbers""; ""Real Numbers""; ""Properties""; ""Commutative Property""
""Associative Property""""Distributive Property""; ""Identity and Inverse Properties""; ""Multiplication and Division""; ""Multiplication and Division with Two Numbers""; ""Multiplication and Division with More Than Two Numbers""; ""Using Visual Formula""; ""Conclusion""; ""Chapter 3 Sets, Exponents, Roots, and Radicals""; ""Sets""; ""Elements""; ""Subsets and Supersets""; ""Expressions to Define Sets""; ""Unions and Intersections""; ""Disjunctions""; ""Venn Diagrams""; ""Exponents""; ""Negative Numbers with Powers""; ""Multiplication""; ""Division""; ""Division with a Negative Exponent""
""Negative Numbers and Exponents""""Powers of Powers""; ""Powers of Zero and One""; ""Worked Problems with Exponents""; ""Scientific Notation""; ""A Few Worked Problems""; ""Absolute Values""; ""Radicals and Roots""; ""A Few Worked Problems""; ""Using Visual Formula""; ""Conclusion""; ""Chapter 4 Expressions, Relations, and Functions""; ""Basic Factoring""; ""Order of Operations""; ""More on Sets""; ""Correspondence Between Sets""; ""Domain and Range""; ""Cartesian Coordinates""; ""Functions""; ""Non-Functional Relationship""; ""Discontinuous Lines""; ""Designating Functions""
""Using Visual Formula""""Conclusion""; ""Chapter 5 Functions and More Functions""; ""Thinking About Equations""; ""Addition and Subtraction""; ""Combining Operations""; ""Approaching Equations in Different Ways""; ""Least Common Denominators and Clearing Fractions""; ""More on Absolute Values""; ""Inequalities""; ""Addition and Subtraction of Values""; ""Multiplication and Division of Values""; ""Conclusion""; ""Chapter 6 Lines, Slopes, and Functions""; ""Reviewing Domain and Range""; ""Linear Functions""; ""Slope""; ""y-Intercept""; ""Negative Slopes""; ""Negative Shifts""
""What Makes a Function Linear?""""Slopes That Do Change""; ""Points, Intercepts, and Slopes""; ""The Point-Slope Equation""; ""Using Visual Formula""; ""Conclusion""; ""Chapter 7 Distances and Other Things""; ""More Slopes""; ""Making It Easy""; ""Making It Still Easier""; ""The Distance Between Points""; ""Applying the Pythagorean Theorem""; ""The Distance Formula""; ""Perpendicular Lines""; ""Depicting Absolute Values""; ""Translation and Shift""; ""Slopes""; ""More on Symmetry""; ""Alternate Forms of Symmetry""; ""Inverses Generally""; ""Using Visual Formula""; ""Conclusion""