MATH 120 Lecture 5: Chapter 2.1 Equations and Graphs
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Professor brendan sheehan chapter 2. 1 equations and graphs. Quadrant i: positive x - and y - values. Quadrant ii: negative x - value; positive y - value. Quadrant iii: negative x - and y - values. Quadrant iv: positive x - value; negative y - value. This system allows us to help determine where a point on the graph is, basically. A point, or ordered pair, can be plotted. For example, let"s consider the ordered pair ( - 1, 3). This would mean that the x - value is - 1 and the y - value is. This puts this ordered pair into quadrant ii. Linear equations have the form y = mx + b. In this case, the linear equation is y = 3x +1. We can find the ordered pair of a number with this equation. Let"s say that we"re trying to find an ordered pair when x = 1.
