Well, before answering the question, it's always useful to actually look at a Michaelis-Menten plot
The plot describes the rate of a catalyzed reaction,
So, starting with the first option
- A straight line connecting the points
This is clearly not correct, since the plot actually uses a curve to connect the points.
- x-axis label of concentration units
As you can see, this is correct, the x-axis does indeed feature concentration units; more precisely, the x-axis of a Michaelis-Menten plot represents the concentration of the substrate, or
- Points of initial velocity measured at
This one is correct as well, since various substrate concentration will have corresponding initial velocities on the y-axis of the plot.
- A value of
#K_m#half up the y-axis
I'm not sure about the wording on this one.
So, if the question implies that
In this case, it would correspond to