Answer:
The answers are:
1. Both are a type of affix.
3. Both can change a word's meaning.
Step-by-step explanation:
An affix is a letter or group of letters added to a root word with the purpose of changing its meaning. Affixes can be divided into prefixes and suffixes. Prefixes are added to the front (beginning) of words, while suffixes are added to the back (ending) of words. Some common prefixes are: mis-, dis-, un-, in-. Some common suffixes are: -able, -ment, -er, -age.
Therefore, according to the definition above, the best options are 1. both are a type of affix and 2. both can change a word's meaning.