ig83 wrote:I am taking the GMAT on Saturday, had some quick questions as I'm studying.

Has anyone that has taken the GMAT ever had to use the quadratic formula?

Do graphs and lines show up a lot on the GMAT. What I mean by that is finding the equation of a line or having to graph an equation to find an answer to a question. What have people seen in the past?

I wouldn't expect any questions that require the quadratic function. I haven't heard any cases where folks reported that they used the quadratic equation to solve a problem--I doubt GMAC would require the use of this equation in any questions that they write, since GMAT math questions are meant to be answered within a few minutes (it takes time to use this formula!)

Coordinate geometry questions appear infrequently--usually in the toughest bin of questions. I would expect that you would see AT MOST one question on this topic. I seem to recall on my GMAT using the y=mx+b formula for a coordinate geometry question.

Best of luck! Let us know how your GMAT goes on Saturday!