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anonymous
 one year ago
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?
a. b = –a
b. –b = –a
c. b – a = 0
d. b(–a) = 0
anonymous
 one year ago
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? a. b = –a b. –b = –a c. b – a = 0 d. b(–a) = 0

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