Find parametric equations of the image of pq under the transformation l
xy
= a
xy
for the given points p, q,
and matrix a.
a. p(2,1), q(−1, −1), a = 3
1 2

b. p(0,0), q(4,2), a = 1 2
−2 1

c. p(3,1), q(1, −2), a = 4
0 1