Linear taper is pretty much symmetric, ie it'll read 50/50 when set midway as far as resistance between the wiper and each outside lug.
Audio pot taper is different, assymetrical, 'curvey math'...one side of the pot wafer has greater resistance to the other. This is to compensate for the way people hear [oversimplified expl.] and is often used for volume controls.
Check out 'the secret life of pots' at GEO.