26. The y-values by amount for every unit increase in x-values. Also, the points on the graph be connected by a line. The function shown a linear function. 27. Describe the domain of the function. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.

O A. The domain is {} (Use a comma to separate answers as needed.)

OB. The domain is all real numbers x such that (Simplify your answer. Type an inequality or a compound inequality.)

O C. The domain is all real numbers.

Describe the range of the function. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.

O A. The range is all real numbers y such that (Simplify your answer. Type an inequality or a compound inequality.)

OB. The range is all real numbers.

OC. The range is (Use a comma to separate answers as needed.)