Todays attendance is four less than half of Yesterdays attendance.

Step 1:

Phrase: Todays attendance is four less than half of Yesterdays attendance.

Variable: Let represents the Yesterdays attendance.

Expressions: .

Therefore, the algebraic expression is .

Step 2:

Make a table for todays attendance.

\ Yesterdays attendance \ Input \	\ Rule \ \	\ Todays attendance \ Output \
	\ \
	\ \
	\ \
	\ \

Step 3:

Find the domain and range.

Domain: Set of all - coordinates is .

Range: Set of all - coordinates is .

Table:

\ Yesterdays attendance \ Input \	\ Rule \ \	\ Todays attendance \ Output \
	\ \
	\ \
	\ \
	\ \

The domain is and the range is .