What happens when the ordered pair (x, y) moves to the right?

Use the multiplier method to incrases £258 by 43%

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

Is this a polynomial function? i need to know asap