Will getting a B in math [linear algebra at a college] as a prospective math major hurt my chances at top schools?

[ucbalumnus]

@merc81

Linear algebra can be regarded as a gateway course into college mathematics. While the grade itself may not have a major impact on your college applications, you might want to repeat this course at your destination college for a firmer foundation in this topic.

Repeating with the ordinary course is unlikely to be worthwhile, but taking an honors or higher level version may be worthwhile.