Let P = (6, -4) and Q = (3, 2). Write vector in terms of I and j

If given an equation of a line such as -1/2x+6 how would you create an equation of a line parallel and perpendicula to this line that goes through another point such as (4,10)

Solve this problem! extra ! 3025/5.5 = a/90.75 / = fraction

Given abc find the values of x and y. in your final answer, include all of your calculations.