Find the range of the function for the values given. A merchant uses the rule f (c) = (2 * c) + 1 to set his selling price.

c 1 2 3

f (c)

F (c) = (2 * c) + 1

when c = 1

f (1) = (2 * 1) + 1

f (1) = 3 < = = range

when c = 2

f (2) = (2 * 2) + 1

f (2) = 5 < = = range

when c = 3

f (3) = (2 * 3) + 1

f (3) = 7 < = = range

range (all the f (c) 's) = {3,5,7}