GRAPHING

GRAPHING Algebra GRAPHING This chapter covers graphing functions and linear equations using various types of graphing systems. EO 1.8 STATE the definition of the following terms: a. Ordinate b. Abscissa EO 1.9 Given a table of data, PLOT the data points on a cartesian coordinate graph. EO 1.10 Given a table of data, PLOT the data points on a logarithmic coordinate graph. EO 1.11 Given a table of data, PLOT the data points on the appropriate graphing system to obtain the specified curve. EO 1.12 Obtain data from a given graph. EO 1.13 Given the data, SOLVE for the unknown using a nomograph. In work with physical systems, the relationship of one physical quantity to another is often of interest. For example, the power level of a nuclear reactor can be measured at any given time. However, this power level changes with time and is often monitored. One method of relating one physical quantity to another is to tabulate measurements. Thus, the power level of a nuclear reactor at specific times can be recorded in a log book. Although this method does provide information on the relationship between power level and time, it is a difficult method to use effectively. In particular, trends or changes are hard to visualize. Graphs often overcome these disadvantages. For this reason, graphs are widely used. A graph is a pictorial representation of the relationship between two or more physical quantities. Graphs are used frequently both to present fundamental data on the behavior of physical systems and to monitor the operation of such systems. The basic principle of any graph is that distances are used to represent the magnitudes of numbers. The number line is the simplest type of graph. All numbers are represented as distances along the line. Positive numbers are located to the right of zero, and negative numbers are located to the left of zero. MA-02 Page 72 Rev. 0