Answer and Explanation 1 We are asked to graph y = 1 3x−2 y = 1 3 x − 2 To do this, we will find ordered pairs, graph them on the Cartesian plane, and then connect them on a straight lineSo, we could talk of a 'straight line graph' for which 'as x increases, y steadily increases' (Figure 73a) or for which 'as x increases, y steadily decreases' (Figure 73b) The term 'steadily' is a rather informal term but it gives a good sense of what is happening Figure 73 Graphs with straight lines (a) (b) The relationships shown in 'curved graphs' are more complexInteractive, free online graphing calculator from GeoGebra graph functions, plot data, drag sliders, and much more!
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