Answer: (y - 7) = M*(x - 4)
Explanation:
Point-slope form is written as:
y - y1 = M*(x - x1)
where M is the slope, and the point is (x1, y1)
In this case we only know the point, so we can write this as:
(y - 7) = M*(x - 4)
Where the value of the slope is not known, then we have infinite possible lines defined in that equation