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.
Slope, m = 3/-3 = -1
y = -x + b
11 = -1+ b b = 12
y = - x + 12
x+y = 12
x/12 + y/12 = 1 < ======== a = 12
+37157 
