Respuesta :

y - y₁ = m(x -x₁)

slope m = 3,  from point (5, 5) ,  x₁ = 5, y₁ = 5

 y - y₁ = m(x -x₁)

y - 5 = 3(x -5)

Answer:

3x-y=10

Step-by-step explanation:

Hope this helps.