For this problem, we use our knowledge on trigonometric functions on a right triangle to be able to calculate for the x and y components of the walk. We do as follows:
sin 60 = ax / 9.4
ax = 8.14
cos 60 = ay / 9.4
ay = 4.7
It would be a straight line
Hmm. There looks to be a typo in the question. I believe it should say "1yd less than double the width", not "more than". Because the only way to get 28 is 7*4.