Below are the steps Richard used to divide directed line segment QR with point A, with Q(1,1) and R(4.5,8), such that the ratio of QA to AR is 2:5.

Richard's procedure contains an error. Select the step that requires revision.

Step 1: Richard plots points Q and R on a coordinate plane.
Step 2: He determines the ratio, k, as 2/(2+5). So, point A is 2/7 of the way from point Q to point R.
Step 3: He finds the slope of QR and defines it as m1/m2. So, m1 = 7 and m2 = 3.5.
Step 4: He calculates Point P to be located at (2/7 · 7 + 1 , 2/7 · 3.5 + 1).