The given table illustrates net greenhouse gas emissions from human activities, 1990-2000 in teragrams of carbon dioxide equivalents (TgCO2Eq)
X(year) y(emission)
X=0 in 1990 (TgCO2Eq)
0 5220
5 5650
10 6380
a) Sketch by hand the plot of data (show the part of the y-axis from 5200 to 6400 in increments of 200)
b) Draw the straight line which appears to fit the data
c) Evaluate slope of line. More recently, emissions have leveled off or declined.)