Identify the domain of the function shown in the graph

Aresearch company wants to test the claim that a new multivitamin to improve short term memory. state the objective of the experiment, suggest a population, determine the experimental and control groups, and describe a sample procedure.

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)