The slope of the line containing the points (-5, 3) and (-2, 1) is -2/3 2/3 -3/2

Which underlined word in the sentence is a demonstrative adjective? these brown shoes fit my feet very well.

Match the description to the term. 1. textbooks conference usage 2. elements surround a word which clarify the meaning casual usage 3. the way in which english is used context 4. family and friends frozen usage 5. friends at a football game formal usage 6. teachers and employers intimate usage 7. making an appointment usage

What can the points on be used for?