SOLUTION: Find the slope of the line containing the given points: (5,7) and (5, -7)

Algebra ->  Graphs -> SOLUTION: Find the slope of the line containing the given points: (5,7) and (5, -7)      Log On


   

Question 738366: Find the slope of the line containing the given points:
(5,7) and (5, -7)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

First let's find the slope of the line through the points and


Note: is the first point . So this means that x%5B1%5D=5 and y%5B1%5D=7.
Also, is the second point . So this means that x%5B2%5D=5 and y%5B2%5D=-7.


m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29 Start with the slope formula.


m=%28-7-7%29%2F%285-5%29 Plug in y%5B2%5D=-7, y%5B1%5D=7, x%5B2%5D=5, and x%5B1%5D=5


m=%28-14%29%2F%285-5%29 Subtract 7 from -7 to get -14


m=%28-14%29%2F%280%29 Subtract 5 from 5 to get 0


Remember, you cannot divide by zero. So this means that the slope is undefined.


Since the slope is undefined, this means that the equation of the line through the points and is x=5.