Real NumbersNatural numbers: (0,∞)Whole Numbers: [0,∞)Integers: (-∞,∞)Rational Numbers: dec representation repeats or terminatesIrrational Numbers: dec representation doesn’t terminate or repeat ex: pi
The Distributive PropertyThe Distributive Property:Where a, b and c are any real numbers.First, let me remind you what it means when two letters are right next to each other in math. This is an Algebra thing!
2.1 FUNCTIONS AND THEIR GRAPHSLinear Equations in Two VariablesUsing SlopeThe simplest mathematical model for relating two variables is the linear equation in two variables y = mx + b. The equation is called linear because its graph is a line. (In mathematics, the term line means straight line.) By letting x = 0, you obtainy = m(0) + b substitute 0 for x.= bSo the line crosses the y- axis at y = b. In other words, the y-intercept is (0,b). The steepness or slope of the line is m.y = mx + b↓ ↓slope y-interceptThe slope of a nonvertical line is the number of units the line rises (or falls) vertically for each unit of horizontal change from left to right. A linear equation that is written in the form y = mx + b is said to be written in slope-intercept form.The Slope-Intercept Form of the Equation of a Line