Section 1

[, 1] mpg Miles/(US) gallon
[, 2] cyl Number of cylinders
[, 3] disp Displacement (cu.in.)
[, 4] hp Gross horsepower
[, 5] drat Rear axle ratio
[, 6] wt Weight (1000 lbs)
[, 7] qsec 1/4 mile time
[, 8] vs Engine (0 = V-shaped, 1 = straight)
[, 9] am Transmission (0 = automatic, 1 = manual)
[, 10] gear Number of forward gears
[, 11] carb Number of carburetors

Section 2

\[mpg = \frac{miles\;traveled}{gallons\;of\;gas}\]

Visualization