Solve each of these equations. Explain or show your reasoning.

Solve each equation and check your solution.

Elena said the equation has no solutions because is greater than . Do you agree with Elena? Explain your reasoning.

The table gives some sample data for two quantities, and , that are in a proportional relationship.

1. Complete the table.

   14	21
   64
   	39
   1

2. Write an equation that represents the relationship between and shown in the table.

3. Graph the relationship. Use a scale for the axes that shows all the points in the table.