Answer:
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
