Question

Confused on how to write the equation due to the graph having a point at (1,2).

Answer 1

The line passes through (1,2) and (4,4)

The equation,

`(y - y1)/(x - x1) = (y2 - y1)/(x2 - x1)`

`(y - 2)/(x - 1) = (4 - 2)/(4 - 1) = (2)/(3)`

`3(y - 2) = 2(x - 1)`

`= > 3y - 6 = 2x - 2`

`= > 2x - 3y - 2 + 6 = 0`

`= > 2x - 3y + 4 = 0`