Write a parametric formula for the line that has xy-equation (y + 2) = 1.52 (x - 1). give a vector parallel to this line. give a vector perpendicular to this line. give a point on this line.

We call our real parameter  and try to save some work by setting  so



and



or



That's enough to answer the question.  

is the parallel vector, often called the direction vector.

To get the perpendicular vector, we swap the coordinates and negate one of them; it doesn't matter which.

is the perpendicular vector.

is a point on the line, given by