Question

If x varies directly with y and x=-19 when y=14 what is x when y=2

Answer 1

The variation from x to y is an illustration of a direct variation

The value of x when y = 2 is -19/7

How to determine the value of x?

The variation is a direct variation.

So, we have:

x = ky

Where k represents the constant of variation

Make k the subject

k = x/y

This gives

x1/y1 = x2/y2

So, we have:

-19/14 = x/2

Multiply both sides by 2

x = -19/14 * 2

Evaluate

x = -19/7

Hence, the value of x when y = 2 is -19/7

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