189) how mnay points of intersection

ajith: Legendary Member; Posts: 1275; Joined: Thu Sep 21, 2006 11:13 pm; Location: Arabian Sea; Thanked: 125 times; Followed by:2 members

by ajith » Thu May 13, 2010 11:46 pm

ern5231 wrote:how many points of intersection does Y = (X-1) (X +1) (X-3) have with x axis?

Equation of x axis is y=0

so to find the points of intersection, we have to solve

y= (X-1) (X +1) (X-3) =0

=> (X-1) (X +1) (X-3) =0

x=1, x= -1 and x=3 are the solutions

so there are 3 such points where the curve intersects x axis

Always borrow money from a pessimist, he doesn't expect to be paid back.

Quote

Post new topic Post Reply

• Page 1 of 1

5/5

5 Star (473 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review