5    Find the graph that best matches the linear equation:          y = 3x + 2

A          B

C          D

6   Find the graph that best matches the linear equation:          3x - 3y = 12

A          B

C          D

7   Find the graph that best matches the linear equation:          3x + 4y = 8

A          B

C          D

Answers:   1D   2C   3D   4C   5C   6B   7D