Find the magnitude of the vector
= (-3, 4).

we cant find the magnitude with just two coordinations.if that equation is y=mxand we can think that these is also a cordintion (0,0)..because line cross the middle of the chart.then we can use the equation m= y difference/x difference

m=(4-0)(-3-0 )

m=4/(-3)

m=-1.333

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.

answer: 31, 5556. 952 seconds