Question 1082104
{{{graph(300,300,-10,65,-5,10,0.075x+2.5)}}}
The y-intercept represents consumption in 1960.
4=.075x+2.5
1.5=0.075x
x=20, and that would be 1980.
in 2020, x=60 and y=.075*60+2.5=4.5+2.5=7 trillion.