Plz plz help Analyze each question, telling whether or not the example can be modeled by a linear or exponential function and tell any specific characteristics about each example (include common difference, common ratio, slope, etc.)

Example 4: In an arcade game, stars are based on the number of space aliens that are hit. For example, for the first alien, 1 star is given, for the second alien, 2 stars are given, for 3 aliens, 4 stars are given, for 4 aliens, 8 stars are given. Each star is multiplied by 100 to determine the players score.