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23 October, 21:14

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 = 2b equals 2 and StartFraction 3 Over 4 EndFraction. when a = - 2a equals negative 2 and StartFraction 3 Over 4 EndFraction ... Which equation represents this direct variation between a and b?

b = - a

-b = - a

b - a = 0

b (-a) = 0

+1
Answers (2)
  1. 23 October, 21:15
    0
    b=-a

    Step-by-step explanation:

    if the distance from origin 0 of b is the same as the distance of a from b but in opposite directions, this makes b differ from a by polarity but with similar values.
  2. 23 October, 21:17
    0
    Yes! The correct answer is A.) b = - a

    Step-by-step explanation:

    I did the Unit test and i got it correct.
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