I started working on "SAT math" in earnest on 6-21-2010. At that point I was barely breaking 600 on practice tests.
Today - 7-18-2010 - I answered all of the questions in "score bands" 600-690 and 700-800 posted on the SAT Skills Insight page.
(I missed a circle question because I have yet to review circles.)
Question number 1 in Skill Group 6, Score Band 700 - 800
The graphs of the functions and are lines, as shown in the figure above. If for some constants and , which of the following could define the function ?