posted by tyneisha .
6. What is the slope of the line represented by the equation x = -9?
7. Write an equation of a line with a slope of 0 and passing through the point (5,4).
Hint: To answer this question, consider the type of line that has a slope of 0. Then write an equation of that line using the values in the ordered pair.
6 slope? it is undefined, the line is vertical