It would be x + 5.75 because the child ticket is 5.75 less than the adult ticket so to solve how to get the adult ticket you do the opposite
I believe the answer is A
Point slope give a point on the line and the slope
it is best used when you are given a point on the line and the slope
or
it is also good when you knwo how to find the slope and you are given 2 points
I would go wiith first option that I said