2 points (d) The figure below shows how the activity of a sample of potassium -40
changes over time. Use the figure above to determine the half-life of
potassium-40. Half-life =
billion years
1200
1000
800
Mass of
sample 600
in mg
400
200
0
0.0 1.0
2.0 3.0 4.0 5.0 6.0 7.0 8.0
Time in billions of years
Your answer

coil wire, increase current, put iron inside the coil

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.