1. Graph the line defined by the equation x + 4y = 5. 

Find the y values for the following values of x:

2. Graph the equation -2x + y = 4 using the x-and y-intercepts.  Uset a third point to check.

3. Find the slope of the line that goes through (-0.1, 0.2) and (0.5, 0.8).

4. Find the slope of the line that goes through (-0.1, 0.2) and (0.5, 0.8).

5. Graph the line through (-2, 5) with slope of -1.

6. Find the slope and y-intercept, if they exist, for the line x - y = 4.

7. Write an equation in slope-intercept form, if possible for the line through (0, -1) that is perpendicular to the line y = x.

8. Write an equation in slope-intercept form, if possible for the line through (0, -1) that is perpendicular to the line y = x.

9. Find the equation of the line parallel to y = -x + 5 that goes through the point (-3, 6).  Write answer in slope-intercept form.

10. Gas Laws.  The volume of a gas is inversely proportional to the pressure on the gas. If the volume is 6 cubic centimeters when the pressure is 8 kilograms per square centimeter, then what is the volume when the pressure is 12 kilograms per square centimeter?

11. How can you tell if an ordered pair satisfies a linear inequality in two variables?

12. Determine which of the following points satisfy 2x + y < 3.

(-2, 6), (0, 3), (3, 0)