SOLUTION: (-1, -10) ( -1,7) standard form

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Question 1198314: (-1, -10) ( -1,7) standard form
Found 2 solutions by greenestamps, MathLover1:
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


Brevity is not a good idea (and is rather impolite) when you are asking for help with a problem.

Re-post, taking the time and effort to post the problem clearly and asking a clear question.

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

assuming you need an equation of a line

(-1, -10) ( -1,7)

first find a slope
m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29
m=%287-%28-10%29%29%2F%28-1-%28-1%29%29
m=%287%2B10%29%2F%28-1%2B1%29
m=17%2F0

Since the denominator is zero, the slope is undefined (remember you cannot divide by zero).
So we cannot use the slope intercept form to write an equation.
We can only say that the equation is a vertical line through x=-1, which means the equation is
x=-1+(notice this is not in slope-intercept form)
The standard form for a vertical line is: x%2B0%2Ay=-1 or x=-1+
So the graph looks like this: