# 1. Open jpeg file

jpeg("rplot.jpg", width = 350, height = "350")

# 2. Create the plot

plot(x = my_data$wt, y = my_data$mpg,

     pch = 16, frame = FALSE,

     xlab = "wt", ylab = "mpg", col = "#2E9FDF")

# 3. Close the file

dev.off()

# Open a pdf file

pdf("rplot.pdf") 

# 2. Create a plot

plot(x = my_data$wt, y = my_data$mpg,

     pch = 16, frame = FALSE,

     xlab = "wt", ylab = "mpg", col = "#2E9FDF")

# Close the pdf file

dev.off()