Question

Which distance formula or formulas show(s) a joint variation?

I d=50t
II d= 1/2 gt²
III d=r· t

A. I and III only
B. II and III only
C. III only
D. I, II, and III

Answer 1

The distance formula that shows joint variation is d = r * t. This formula demonstrates joint variation because the distance, d, is directly proportional to both the rate, r, and the time, t.

Step-by-step explanation:

The distance formula that shows joint variation is d = r * t. This formula demonstrates joint variation because the distance, d, is directly proportional to both the rate, r, and the time, t. This means that as the rate or time increases, the distance also increases.