# Calculus Question **URL:** \ **Category:** random\ **Created:** [May 1, 2005, 11:05pm UTC](https://forum.kirupa.com/t/calculus-question/88700 "2005-05-01T23:05:19Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![NeoDreamer](https://avatars.discourse-cdn.com/v4/letter/n/ccd318/32.png) [@NeoDreamer](https://forum.kirupa.com/u/NeoDreamer)\ **Post date:** [May 1, 2005, 11:05pm UTC](https://forum.kirupa.com/t/calculus-question/88700/1 "2005-05-01T23:05:19Z")
It’s 2 days before the AP Calculus test and I need a question answered: You integrate a differential equation and get 2y = x + C. Does that equal y = .5x + C or y = .5x + .5C? My book says it’s the former because .5\*constant = another constant, but I believe it is the latter. Here’s why. Say that they give you the point (1, 2) to solve for C: 2y = x + C 2\*2 = 1 + C **3 = C** Confirmation: y = .5x + .5C 2 = .5_1 + .5C 2 - .5 = .5C 1.5_2 = C **3 = C** But using the books method: y = .5x + C 2 = .5\*1 + C **1.5 = C**