A line passes through the points (4,w) and (6,7) and has a slope of 3. Find the value of w that would make this true.

Answer 1

m = (y₂ - y₁) / (x₂ - x₁)

3 = (7 - w) / (6 - 4)

3 = (7 - w) / 2

You should be able to solve for w and finish from here.