#### Problem Statement: CE Board May 1996

What is the differential equation of the family of parabolas having their vertices at the origin and their foci on the x-axis?

- A. 2x dy – y dx = 0
- B. x dy + y dx = 0
- C. 2y dx – x dy = 0
- D. dy / dx – x = 0

#### Problem Answer:

The differential equation of the family of parabolas is **2xdy – ydx = 0**

Solution:

### Latest Problem Solving in Differential Equations

div.feedburnerFeedBlock ul li {background: #E2F0FD;

list-style-type: none;

margin:0 0 5px 0px;

padding:5px 5px 5px 10px !important;

border: 1px solid #0080ff;

border-radius:8px;

-moz-border-radius:8px;

-webkit-border-radius:8px;

}

div.feedburnerFeedBlock ul li:hover {

background:#ffffff;

}

div.feedburnerFeedBlock ul li a{

color:#ffffff;

text-decoration:none;

}

div.feedburnerFeedBlock ul li a:hover {

text-decoration: underline;

color: #000000;

}

div #creditfooter{

display: none;

}

More Questions in: Differential Equations