Respuesta :

altavistard
Use the point-slope formula for the eqn of a str line:

y-1 = 2(x-1)

This becomes y = 1+2(x-1) = 1 + 2x - 2 = 2x - 1,

so the simplest form of the desired eqn is y = 2x - 1.

Otras preguntas