Suppose that in the country of Sudland, when the yearly rate of economic growth fell from 3.0% to 1.5%, the yearly rate of increase in airborne pollutants fell from 6% to 5%. What is the average slope of a nonlinear curve between these points using the arc method

2/3 0r 0.66667

Explanation:

we have to get which is the dependent variable and also the independent variable.

Δ in rate of economic growth causes Δ in the airborne pollutants. this tells us that airborne pollutants is dependent on the rate of economic growth.

change in economic growth = 1.5% - 3% = -1.5%

Δx = -1.5

the dependent vaiable is the y variable, that is the variable on the Y-axis.

ΔY = 5%-6% = 1%

from here we calculate the average slope

Δy/Δx = -1/-1.5

= 1/1.5

this is also equivalent to 2/3 or 0.66667

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