# 
# ps1pr3.py - Problem Set 1, Problem 3
#
# Functions with numeric inputs
#
# If you worked with a partner, put their contact info below:
# partner's name:
# partner's email:
#

# function 0
def opposite(x):
    """ returns the opposite of its input
        input x: any number (int or float)
    """
    return -1*x

# put your definitions for the remaining functions below






# test function with a sample test call for function 0
def test():
    """ performs test calls on the functions above """
    print('opposite(-8) returns', opposite(-8))

    # optional but encouraged: add test calls for your functions below