Question

investigation hubbles law

1. identify the variables that will go on the x and y axis. circle whether each variable represents qualitative or quantitative data.

independent variable ____________ qualitative or quantitative
dependent variable ____________ qualitative or quantitative

1. write the title of the graph.
2. label the x and y - axis (make sure to include units!)
3. determine a scale for the x and y - axis and label.
4. create a graph to show the data (label each point with the name of the galaxy).

the relationship between __________ iv and __________ dv

Explanation:

Step1: Recall Hubble's Law

Hubble's Law relates distance (d) and recessional velocity (v). Distance is IV, velocity is DV. Both are quantitative.

Step2: Title of graph

"Relationship between Distance and Recessional Velocity of Galaxies"

Step3: Axis labels

X - axis: Distance (in megaparsecs, Mpc); Y - axis: Recessional Velocity (in km/s)

Step4: Scale determination

Depends on data range. E.g., X - 0 to max distance in Mpc in intervals; Y - 0 to max velocity in km/s in intervals.

Step5: Graph creation

Plot points with galaxy names, connect if appropriate.

Answer:

Independent Variable: Distance, Quantitative
Dependent Variable: Recessional Velocity, Quantitative
Title: "Relationship between Distance and Recessional Velocity of Galaxies"
X - axis: Distance (Mpc), Y - axis: Recessional Velocity (km/s)
Scale: Varies by data.
Graph: Plot points with galaxy names.