slope = y₂ -y₁ / x₂ - x₁
Let the given points be x₁ = 2 and y₁=3
slope = 3/4
substituting into the formula;
3/4 = y₂ - 3 / x₂ - 2
Which implies;
y₂ - 3 / x₂ - 2 = 3/4
Now let's plug in the point to see whether it satisfy the equation
Let's start with (6,6)
Plugging the above into the equation;
6 - 3 / 6 - 2 = 3/4
It satisfies the equation, hence (6,6) is the second point of the line