Exhibit 1A-7 Straight line relationship 2.0 1.5 Personal expenditure on air travel (thousands of dollars per year) 1.0 0.5 0 10 20 30 40 Annual income (thousands of dollars) Using the relationship shown in Exhibit IA-7, suppose the price of air travel increases. How would you O Draw a new point on the graph upward and to the left O Draw a new point on the graph downward and to the right. Draw a new line on the graph. O Change the current line so that its slope is flatter