Question:
Solution:
A) Any vertical line, will have an undefined slope. These lines are always of the form x=c, where c is a constant. Thus, a possible equation of a line with an indefinite slope could be:
[tex]x\text{ = 3}[/tex]
B) A point on the line defined above has any y coordinate, but the x coordinate is constant, that is, x = 3. Thus a point on the line x= 3, would be:
[tex](x,y)=(3,7)[/tex]
