10
QuizMultiple Choice
Unit Test
Question 10 of 25 • Algebra I A
On a number line, a number, b, is located the same distance from 0 as another number, a, but in the opposite direction. The number b varies directly with the number a. For example b = 2 when a = –2. Which equation represents this direct variation between a and b?
Answer
A
b = –aB
–b = –aC
b – a = 0D
b(–a) = 0