SOLUTION: The line passing through (-4, 2) and (2, -3) is perpendicular to the line passing through (a, 5) and (2, -1). Find a.

Algebra ->  Linear-equations -> SOLUTION: The line passing through (-4, 2) and (2, -3) is perpendicular to the line passing through (a, 5) and (2, -1). Find a.      Log On


   

Question 894638: The line passing through (-4, 2) and (2, -3) is perpendicular to the line passing through (a, 5) and (2, -1). Find a.
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The product of the slopes must be -1.

%28%28-3-2%29%2F%282-%28-4%29%29%29%28%285-%28-1%29%29%2F%28a-2%29%29=-1
%285%2F2%29%286%2F%28a-2%29%29=-1
%285%2A6%29=-1%2A%282%28a-2%29%29
30=-2%28a-2%29
-15=a-2
a=-15%2B2
highlight%28a=-13%29

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

The line passing through (-4, 2) and (2, -3) is perpendicular to the line passing through (a, 5) and (2, -1). Find a.


highlight_green%28a+=+7%29

You can do the check!! 



If you need a complete and detailed solution, let me know!!



Send comments, “thank-yous,” and inquiries to “D” at MathMadEzy@aol.com.

Further help is available, online or in-person, for a fee, obviously. 



For FREE info and answers to questions about the ASVAB exam, the NYS 3 – 8 city/state wide exams,GENERAL

MATH and HOMEWORK QUESTIONS, or MATH QUESTIONS related to the Regents Integrated Algebra, 

Regents Geometry, Regents Algebra 2/Trigonometry, SHSAT, COOP/HSPT/TACHS, PSAT, SAT, ACT, SSAT/ISEE,

GRE, CLEP, and the TASC/GED, you can visit: http://asvabstudyzone.freeforums.net/.