Science Homework Help

I need an explanation for this Physics question to help me study.

simulation link :  https://phet.colorado.edu/sims/html/circuit-construction-kit-dc-virtual-lab/latest/circuit-construction-kit-dc-virtual-lab_en.html

Voltage Current and Resistance II lab,  you will use 22 ohm and 80 ohm resistors in series and parallel. Apply voltages of 1 thru 7 volts in 1 volt increments. Determine the overall resistance of the circuit. After, create a plot of voltage vs current and explain what does the graph represent. Keep the wire resistivity to “tiny” Explain the results. 

To be clear i need a graph drawn and the overall resistance of the circuit determined.