first start with a vector that has terminal point (12,5) (do you see why?)

find the unit vector of that vector

multiply the unit vector by 26 to get the final answer

the "if" in the question makes it read weird. please review to make sure you have the right wording. anyway, it seems you want the vector perpendicular to the tangent vector that points to the y-axis2) Find a unit vector which if the terminal points (4,4) on is normal to the curve and pointed toward the positive y-axis

I dunno how to do this...