SOLUTION: 18. Write the equation of the line passing through (–3, –7) and (–3, –6). A) x = –3 B) y = –3 C) y = x – 3 D) y = x no book Thanks so much for your time!!

Algebra ->  Linear-equations -> SOLUTION: 18. Write the equation of the line passing through (–3, –7) and (–3, –6). A) x = –3 B) y = –3 C) y = x – 3 D) y = x no book Thanks so much for your time!!      Log On


   

Question 54858: 18. Write the equation of the line passing through (–3, –7) and (–3, –6).
A) x = –3
B) y = –3
C) y = x – 3
D) y = x
no book Thanks so much for your time!!
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
18. Write the equation of the line passing through (–3, –7) and (–3, –6).
A) x = –3
B) y = –3
C) y = x – 3
D) y = x
First notice that the slope is undefinded: m=highlight%28%28y2-y1%29%2F%28x2-x1%29%29
m=%28-6-%28-7%29%29%2F%28-3-%28-3%29%29
m=%28-6%2B7%29%2F%28-3%2B3%29
m=1%2F0 The demoninator=0 therefore the slope is undefined. Vertical lines have undefined slopes. The equation of a vertical line going through (-3,-7) and (-3,-6) is x=-3 (a)
Happy Calculating!!!