X. Section 2.4 The linear function f(x) = -0.28x + 1.7 models the percentage of U. S. taxpayers who were audited by the IRS, f(x), x years aßer 1996. (Source: IRS) Find the slope of the model. Then describe what this means in terms of the rate of change of the dependent variable per unit change in the independent variable.

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The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

Find the value of x for which line a is parallel to line b