Question 54980
20.	Write the equation of the line with x-intercept (–1, 0) and undefined slope.
A)	y = –1
B)	x = –1
C)	y = –x
D)	x = 0
Vertical lines have undefined slopes.  They are special cases, the equation of the vertical line going through (-1,0) is {{{highlight(x=-1)}}}
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