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What is the general relationship between a galaxy's distance from earth and its speed?

Answer 1

Hubble law explains the recessional velocity and distance.

The current value of the Hubble constant is 73 kilometres per second or megaparsecs. Put another way, the further away a galaxy is, the faster its recessional speed is. V= Ho x D where V= recessional ve; velocity Ho=Hubble constant

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Answer 2

Ivy Allen

Hubble's law, which is expressed as v = H0 * d, where v is the velocity, d is the distance, and H0 is the Hubble constant, describes the general relationship between a galaxy's speed and its distance from Earth. It states that the velocity at which a galaxy is moving away from us is directly proportional to its distance from Earth.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.