+0  
 
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13
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avatar+479 

The equation of the line below can be expressed in the form
\frac{x}{a} + \frac{y}{b} = 1.
Find a.
The lines passes through (5,8) and (-4,17).

 Jul 22, 2024
 #1
avatar+129883 
+1

Slope  =  [ 17 -  8 ] / [ -4 -5] =  9 / -9 = -1

 

Equation of line

 

y = -1 (x -5) + 8

 

y = -x + 5 + 8

 

x + y  = 13      divide through by 13

 

x / 13  +  y / 13   = 1

 

a = 13

 

cool cool cool 

 Jul 22, 2024

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