SOLUTION: Write a equation in standard form for the line described. Through (7,9), perpendicular to 5x+y=4

Algebra ->  Test -> SOLUTION: Write a equation in standard form for the line described. Through (7,9), perpendicular to 5x+y=4      Log On


   

Question 669727: Write a equation in standard form for the line described.
Through (7,9), perpendicular to 5x+y=4
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
5x+y=4

5x+y=C

Swap the coefficients and change the sign of the y coefficient to get

x - 5y = C

Then plug in (7,9) to find C

x - 5y = C

7 - 5(9) = C

7 - 45 = C

-38 = C

C = -38

So the perpendicular equation is x - 5y = -38