Plot 50+ coordinates in order, then connect them. A long-necked dinosaur stretches across the page. Coordinates make pictures.
Why connect-the-dots makes a picture
Every (x, y) pair is one point. Plot the points in order and draw lines between consecutive ones — you get a path. Choose the points cleverly and that path is a dinosaur, a letter, a logo. Video games and fonts store shapes the exact same way: as ordered lists of coordinates.
Want a bigger Diplodocus? Multiply every coordinate by the same number. Double them all and the dino is twice as wide and twice as tall — but takes up four times the paper, because area scales by the square.
You multiply every coordinate of your dinosaur by 3. How many times longer is the neck, and how many times more area does the whole drawing cover?
Why it works
Every (x, y) is a point. Connect them in order, and you get a path. Pick the points carefully and that path looks like anything you want.
Try drawing your own creature first: sketch it on graph paper, then list the coordinates. That's how all polygon graphics work — including video games.