Question

On a number line, a number, B, is located the same distance from zero as another number, a, but in the opposite direction. The number B varies directly with the number a. For example B equals 2×3÷4 when a equals -2×3÷4. Which equation represents this direct variation between A and b?

Answer 1

The equation that represents direct variation between a and b is b = -a

What is the meaning of Direct Variation ?

When a number is in Direct Variation to the other number then on increasing one number the other number also increases.

It is given that two numbers varies directly with each other

such that they are equidistant form zero but in opposite direction.

This can be represented by b = -a

To know more about Direct Variation

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