Garrett had 120 comics in his comic book collection. 45 of them are Spiderman comics, 50 of them are Batman comics and the rest are Superman comics. Which equation can be used to find c, the number of Superman comic books?

Identify the function that contains the data in the following table: x     -2         0         2         3         5     f(x)     5         3         1         2         4     possible answers: f(x) = |x| + 1 f(x) = |x - 2| f(x) = |x - 2| - 1 f(x) = |x - 2| + 1