Question

On a number line, a number, b, is located the same distance from 0 as another number, a, but in the opposite directior

The number b varies directly with the number a. For example b
22 whena=-2Which equation represents this
direct variation between a and b?
Ob=-a
Ob--a
Ob-a=0
O b-a) =0

Answer 1

b=-a

Explanation:

Becaude when b is positive a will be negative

And when b is negative a will be positive.