Question 43

In the $$xy$$-plane, the equation $$x^2 - y^2 = 2y + 1$$ represents a

Solution

We have, $$x^2 - y^2 = 2y + 1$$

=> $$x^2 = y^2 + 2y + 1$$

=> $$x^2 - (y+1)^2 $$=0

=> (x-y-1)(x+y+1)=0

Here we have a pair of straight lines: x-y-1=0 and x+y+1=0.

Create a FREE account and get:

All Quant Formulas and shortcuts PDF
40+ previous papers with solutions PDF
Top 500 MBA exam Solved Questions for Free

CAT Quant Questions | CAT Quantitative Ability

CAT Time And Work Questions CAT Averages Mixtures Alligations Questions CAT Geometry Questions CAT Coordinate Geometry Questions CAT Data Sufficiency Questions

CAT DILR Questions | LRDI Questions For CAT

CAT Special Charts Questions CAT Venn Diagrams Questions CAT DI Miscellaneous Questions CAT Truth Lie Concept Questions CAT Coins and Weights Questions

CAT Verbal Ability Questions | VARC Questions For CAT

CAT Critical Reasoning Questions CAT Verbal Ability Questions CAT Para Jumbles Questions CAT Odd One Out Questions CAT Miscellaneous Questions

Follow us on

Boost your Prep!

Download App