Graph: R (language): Points, Lines
#!/usr/bin/env R plot(c(3, 6, 9, 12), c(1, 4.3, 8.7, 12), pch = 16, col = "red", ylim = c(-2, 15), xlab = "3,6,9,12", ylab = "1,4.3,8.7,12") lines(c(3, 6, 9, 12), c(1, 4.3, 8.7, 12), col = "purple4")