The equation is .

where, is the weight of water in pounds and is the body weight in pounds.

a.

Make a table for water weight for people weighing and pounds.

Tablular form:

Body weight	Water weights

b.

Find the independent and dependent variables.

The body weight () is the independent variable because it is unaffected by the weight of water ().

The weight of water () is the dependent variable because it depends on the body weight ().

c.

Find the domain and range, and then graph the relation:

The domain is the set of -coordinates for the independent variable and the range is the set of -coordinates from the dependent variable.

The domain is .

The range is .

Graph the body weight (the independent variable) on the -axis and the water weight (the dependent variable) on the -axis.

Graph:

d.

Reverse the independent and dependent variables and Graph the relation.

Explain what the graph indicates in the circumstance.

The water weight becomes the independent variable and is graphed on the -axis. The body weight becomes the dependent variable and is graphed on the -axis.

Graph:

This graph indicates that the body weight is dependent on the water weight. As the water weight increases, the body weight also increases.

a.

Tablular form:

Body weight	Water weights

b.

The body weight in pounds, is the independent variable because it is unaffected by the weight of water in pounds,.

The weight of water in pounds, is the dependent variable because it depends on the body weight in pounds,.

c.

Graph of the body weight (the independent variable) on the -axis and the water weight (the dependent variable) on the -axis. \ \

d.

The water weight becomes the independent variable and is graphed on the -axis.

The body weight becomes the dependent variable and is graphed on the -axis. \ \