SOLUTION: Find the slope of the line that is perpendicular to the line that contains the points (-3,-3) and (5,2) A. -8/5 B. 8/5 C. -5/8 D. 5/8

Question 169824: Find the slope of the line that is perpendicular to the line that contains the points (-3,-3) and (5,2)
A. -8/5
B. 8/5
C. -5/8
D. 5/8
Found 2 solutions by jim_thompson5910, solver91311:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the slope formula.

Plug in , , , and

Subtract from to get

Subtract from to get

So the slope of the line that goes through the points and is

Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Let be the slope of the line through (-3,-3) and (5,2). Then

If line has a slope and line has a slope , is perpendicular to if and only if

Since the slope of the line through (-3,-3) and (5,2) is , the slope of any perpendicular must be ; Answer A, in this case.
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