Question

use the information provided to answer the questions.
figure 1 shows edwin hubbles plot of the velocity - distance relationship for galaxies (also known as hubbles diagram).
by plotting the distance to a galaxy (measured from cepheid star variables) on the x - axis and the velocity of the galaxy (measured by the shift in the spectral lines) on the y - axis, edwin hubble found a consistent relationship.
figure 1: hubbles diagram
which of the following best supports hubbles law?
the farther a galaxy is from earth, the slower it moves away from earth.
the farther a galaxy is from earth, the faster it moves away from earth.
all galaxies move at the same speed, regardless of their distance from earth.
nearby galaxies are moving toward earth while distant ones remain stationary.

Explanation:

Hubble's Law describes a direct proportional relationship between a galaxy's distance from Earth and its recessional velocity (how fast it moves away from Earth). This means greater distance corresponds to faster outward movement.

Answer:

The farther a galaxy is from Earth, the faster it moves away from Earth.