Use the line drawing tool to draw the equation

Upper Y equals 2 plus 1.25 Upper X

.

Label your line 'A'.

2.) Use the line drawing tool to draw the equation

Upper Y equals 16 minus Upper X

.

Label your line 'B'.

3.) graph these lines

indicate

the point where both equations are equal. Label this point 'Equilibrium'.

Carefully follow the instructions above, and only draw the required objects.