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The equation of the line passing through (1,11) and (4,8) can be expressed in the form

x/a + y/b = 1.
Find a.

 Jun 27, 2021

Best Answer 

 #1
avatar+33376 
+2

Find slope, m = 3/-3  = -1

 

y = -1 x   + b    plug in one point to calculate b = 12

 

y = -x + 12     re-arrange

 

x + y = 12     divide by 12

x/(12)  + y/(12) = 1               a = b = 12

 Jun 27, 2021
 #1
avatar+33376 
+2
Best Answer

Find slope, m = 3/-3  = -1

 

y = -1 x   + b    plug in one point to calculate b = 12

 

y = -x + 12     re-arrange

 

x + y = 12     divide by 12

x/(12)  + y/(12) = 1               a = b = 12

ElectricPavlov Jun 27, 2021

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