Asked by Anonymous

Is x/a+y/b=1 a valid equation form of a line? If so why?

15 years ago

Answered by Reiny

I assume you mean a "straight" line and that a and b are constants.

x/a + y/b = 1
multiply be ab to get

bx + ay = ab

which has the pattern of
Ax + By = C, the equation of a straight line.

15 years ago

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